diff --git a/index.html b/index.html
index 834ebd8b..16a370b9 100644
--- a/index.html
+++ b/index.html
@@ -160,7 +160,7 @@ if (window.location.host.endsWith('8bitworkshop.com')) {
 
   <!-- PLATFORMS menu -->
   <span class="dropdown">
-    <a class="btn dropdown-toggle hidden-xs toolbarMenuButton" id="platformsMenuButton" style="min-width:90px" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
+    <a class="btn dropdown-toggle toolbarMenuButton" id="platformsMenuButton" style="min-width:90px" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
       <span class="platform_name">PLATFORMS</span> <span class="caret"></span>
     </a>
     <ul class="dropdown-menu dropdown-menu-right" aria-labelledby="platformsMenuButton">
@@ -208,7 +208,7 @@ if (window.location.host.endsWith('8bitworkshop.com')) {
              <ul class="dropdown-menu">
                <li><a class="dropdown-item" href="?platform=vcs.mame">Atari 2600 (MAME)</a></li>
                <li><a class="dropdown-item" href="?platform=nes.mame">NES (MAME)</a></li>
-               <li><a class="dropdown-item" href="?platform=coleco.mame">ColecoVision (MAME)</a></li>
+               <!--<li><a class="dropdown-item" href="?platform=coleco.mame">ColecoVision (MAME)</a></li>-->
                <li><a class="dropdown-item" href="?platform=vector-ataricolor">Atari Color Vector (6502)</a></li>
                <li><a class="dropdown-item" href="?platform=markdown">Markdown</a></li>
              </ul>
diff --git a/package-lock.json b/package-lock.json
index 41e2d9eb..c5ec4b27 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "8bitworkshop",
-  "version": "3.4.1",
+  "version": "3.5.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -61,9 +61,9 @@
       "dev": true
     },
     "@types/node": {
-      "version": "8.10.53",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.53.tgz",
-      "integrity": "sha512-aOmXdv1a1/vYUn1OT1CED8ftbkmmYbKhKGSyMDeJiidLvKRKvZUQOdXwG/wcNY7T1Qb0XTlVdiYjIq00U7pLrQ==",
+      "version": "13.1.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-13.1.1.tgz",
+      "integrity": "sha512-hx6zWtudh3Arsbl3cXay+JnkvVgCKzCWKv42C9J01N2T2np4h8w5X8u6Tpz5mj38kE3M9FM0Pazx8vKFFMnjLQ==",
       "dev": true
     },
     "@types/sizzle": {
@@ -340,9 +340,9 @@
       }
     },
     "chromedriver": {
-      "version": "76.0.1",
-      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-76.0.1.tgz",
-      "integrity": "sha512-+8BCemJLKPF2w/UpzA1uNgLWQrg1IgIO4ZYcsAjYYgqD8zUcvQ+RfwA/0TR1Zwv9Mkd8fdzTe21eZ2FyZ83DAg==",
+      "version": "79.0.0",
+      "resolved": "https://registry.npmjs.org/chromedriver/-/chromedriver-79.0.0.tgz",
+      "integrity": "sha512-DO29C7ntJfzu6q1vuoWwCON8E9x5xzopt7Q41A7Dr7hBKcdNpGw1l9DTt9b+l1qviOWiJLGsD+jHw21ptEHubA==",
       "dev": true,
       "requires": {
         "del": "^4.1.1",
@@ -496,38 +496,6 @@
         "inherits": "^2.0.3",
         "readable-stream": "^2.2.2",
         "typedarray": "^0.0.6"
-      },
-      "dependencies": {
-        "isarray": {
-          "version": "1.0.0",
-          "resolved": "https://registry.npmjs.org/isarray/-/isarray-1.0.0.tgz",
-          "integrity": "sha1-u5NdSFgsuhaMBoNJV6VKPgcSTxE=",
-          "dev": true
-        },
-        "readable-stream": {
-          "version": "2.3.6",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
-          "integrity": "sha512-tQtKA9WIAhBF3+VLAseyMqZeBjW0AHJoxOtYqSUZNJxauErmLbVm2FW1y+J/YA9dUrAC39ITejlZWhVIwawkKw==",
-          "dev": true,
-          "requires": {
-            "core-util-is": "~1.0.0",
-            "inherits": "~2.0.3",
-            "isarray": "~1.0.0",
-            "process-nextick-args": "~2.0.0",
-            "safe-buffer": "~5.1.1",
-            "string_decoder": "~1.1.1",
-            "util-deprecate": "~1.0.1"
-          }
-        },
-        "string_decoder": {
-          "version": "1.1.1",
-          "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
-          "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
-          "dev": true,
-          "requires": {
-            "safe-buffer": "~5.1.0"
-          }
-        }
       }
     },
     "core-util-is": {
@@ -1052,9 +1020,9 @@
       }
     },
     "glob": {
-      "version": "7.1.4",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.4.tgz",
-      "integrity": "sha512-hkLPepehmnKk41pUGm3sYxoFs/umurYfYJCerbXEyFIWcAzvpipAgVkBqqT9RBKMGjnq6kMuyYwha6csxbiM1A==",
+      "version": "7.1.6",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+      "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
       "dev": true,
       "requires": {
         "fs.realpath": "^1.0.0",
diff --git a/package.json b/package.json
index 232e4204..f2f85b4a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "8bitworkshop",
-  "version": "3.4.1",
+  "version": "3.5.0",
   "author": "Steven Hugg",
   "description": "8bitworkshop.com",
   "repository": {
@@ -18,7 +18,7 @@
     "@types/jquery": "^3.3.31",
     "atob": "^2.1.x",
     "btoa": "^1.2.x",
-    "chromedriver": "^76.0.1",
+    "chromedriver": "^79.0.0",
     "clipboard": "^2.0.4",
     "jsdom": "^12.2.0",
     "lzg": "^1.0.x",
diff --git a/presets/coleco/lines.c b/presets/coleco/lines.c
index 0a8b2bd4..aa3ab858 100644
--- a/presets/coleco/lines.c
+++ b/presets/coleco/lines.c
@@ -60,7 +60,7 @@ void draw_line(int x0, int y0, int x1, int y1, byte color) {
   }
 }
 
-#ifdef _MAIN_
+#ifdef __MAIN__
 
 void main() {
   setup_mode2();
diff --git a/presets/coleco/multicolor.c b/presets/coleco/multicolor.c
index c76e08b8..e9c11f77 100644
--- a/presets/coleco/multicolor.c
+++ b/presets/coleco/multicolor.c
@@ -62,7 +62,7 @@ void draw_line(int x0, int y0, int x1, int y1, byte color) {
   }
 }
 
-#ifdef _MAIN_
+#ifdef __MAIN__
 
 void main() {
   setup_multicolor();
diff --git a/src/codemirror/bataribasic.js b/src/codemirror/bataribasic.js
index 3a4a4e81..6e05ef50 100644
--- a/src/codemirror/bataribasic.js
+++ b/src/codemirror/bataribasic.js
@@ -42,7 +42,7 @@ CodeMirror.defineMode('bataribasic', function(_config, parserConfig) {
     "kernel","multisprite","multisprite_no_include","debug",
     "cyclescore","cycles","legacy"
     ];
-  var directives = {};
+  var directives = new Map();
   directives_list.forEach(function(s) { directives.set(s, 'keyword'); });
 
   var numbers = /^([$][0-9a-f]+|[%][01]+|[0-9.]+)/i;
diff --git a/src/common/audio/z80worker.js b/src/common/audio/z80worker.js
index 46a853cb..1fe269a4 100644
--- a/src/common/audio/z80worker.js
+++ b/src/common/audio/z80worker.js
@@ -32,8 +32,8 @@ function require(modname) {
   else { console.log("Unknown require()", modname); return exports; }
 }
 
-importScripts("../../gen/emu.js");
-importScripts("../../gen/cpu/ZilogZ80.js");
+importScripts("../../../gen/common/emu.js");
+importScripts("../../../gen/common/cpu/ZilogZ80.js");
 
 var cpu, ram, rom, membus, iobus;
 var audio;
diff --git a/src/common/baseplatform.ts b/src/common/baseplatform.ts
index 4b097d96..b9f68d62 100644
--- a/src/common/baseplatform.ts
+++ b/src/common/baseplatform.ts
@@ -755,6 +755,9 @@ export abstract class BaseMAMEPlatform {
         console.log("loaded " + opts.biosfile); // + " (" + oEvent.total + " bytes)");
         fetch_bios.resolve();
       };
+      oReq1.ontimeout = function (oEvent) {
+        throw Error("Timeout loading " + opts.biosfile);
+      }
       oReq1.send();
     } else {
       fetch_bios.resolve();
@@ -774,6 +777,9 @@ export abstract class BaseMAMEPlatform {
         window['Module'].wasmBinary = new Uint8Array(oReq2.response);
         fetch_wasm.resolve();
       };
+      oReq2.ontimeout = function (oEvent) {
+        throw Error("Timeout loading " + opts.jsfile);
+      }
       oReq2.send();
     }
     // start loading script
diff --git a/src/common/util.ts b/src/common/util.ts
index 2d40cbc6..a95b35ce 100644
--- a/src/common/util.ts
+++ b/src/common/util.ts
@@ -464,6 +464,9 @@ export function getWithBinary(url:string, success:(text:string|Uint8Array)=>void
       throw Error("Error " + oReq.status + " loading " + url);
     }
   }
+  oReq.ontimeout = function (oEvent) {
+    throw Error("Timeout loading " + url);
+  }
   oReq.send(null);
 }
 
diff --git a/src/platform/astrocade.ts b/src/platform/astrocade.ts
index 82f59d64..4a5f77bf 100644
--- a/src/platform/astrocade.ts
+++ b/src/platform/astrocade.ts
@@ -7,9 +7,9 @@ import { PLATFORMS } from "../common/emu";
 // http://metopal.com/projects/ballybook/doku.php
 
 const ASTROCADE_PRESETS = [
-  { id: '01-helloworlds.asm', name: 'Hello World' },
-  { id: '02-telephone.asm', name: 'Telephone' },
-  { id: '03-horcbpal.asm', name: 'Paddle Demo' },
+  { id: '01-helloworlds.asm', name: 'Hello World (ASM)' },
+  { id: '02-telephone.asm', name: 'Telephone (ASM)' },
+  { id: '03-horcbpal.asm', name: 'Paddle Demo (ASM)' },
   { id: 'hello.c', name: 'Hello Graphics' },
   { id: 'lines.c', name: 'Lines' },
   { id: 'sprites.c', name: 'Sprites' },
diff --git a/src/platform/williams.ts b/src/platform/williams.ts
index 229a3e84..81229753 100644
--- a/src/platform/williams.ts
+++ b/src/platform/williams.ts
@@ -276,6 +276,7 @@ var WilliamsPlatform = function(mainElement, proto) {
   this.start = function() {
     ram = new RAM(0xc000);
     nvram = new RAM(0x400);
+    rom = new Uint8Array(0xc000);
     // TODO: save in browser storage?
     //displayPCs = new Uint16Array(new ArrayBuffer(0x9800*2));
     //rom = padBytes(new lzgmini().decode(ROBOTRON_ROM).slice(0), 0xc001);
@@ -291,7 +292,7 @@ var WilliamsPlatform = function(mainElement, proto) {
     cpu = self.newCPU(membus, iobus);
 
     audio = new MasterAudio();
-    worker = new Worker("./src/audio/z80worker.js");
+    worker = new Worker("./src/common/audio/z80worker.js");
     workerchannel = new WorkerSoundChannel(worker);
     audio.master.addChannel(workerchannel);
 
diff --git a/src/worker/workermain.ts b/src/worker/workermain.ts
index 9fb9ac8e..cf6e00af 100644
--- a/src/worker/workermain.ts
+++ b/src/worker/workermain.ts
@@ -1110,7 +1110,7 @@ function compileCC65(step:BuildStep) {
     ];
     if (params.define) params.define.forEach((x) => args.push('-D'+x));
     args.push(step.path);
-    console.log(args);
+    //console.log(args);
     execMain(step, CC65, args);
     if (errors.length)
       return {errors:errors};
diff --git a/test/web/testallpresets.js b/test/web/testallpresets.js
index a8115547..fac99e2e 100644
--- a/test/web/testallpresets.js
+++ b/test/web/testallpresets.js
@@ -74,12 +74,14 @@ function testPlatform(exports, platform_id, platform_name, numPresets) {
 
 ///
 
+/*
 testPlatform(this, 'vcs', 'Atari 2600', 35);
 testPlatform(this, 'nes', 'NES', 30);
 testPlatform(this, 'vicdual', 'VIC Dual', 7);
 testPlatform(this, 'mw8080bw', 'Midway 8080', 3);
 testPlatform(this, 'galaxian-scramble', 'Galaxian/Scramble', 3);
 testPlatform(this, 'vector-z80color', 'Atari Color Vector (Z80)', 3);
+*/
 testPlatform(this, 'williams-z80', 'Williams (Z80)', 3);
 // TODO testPlatform(this, 'sound_williams-z80', 'Williams Sound (Z80)', 1);
 testPlatform(this, 'coleco', 'ColecoVision', 12);