diff --git a/presets/apple2/lzg.c b/presets/apple2/lzg.c
index 561a623c..5f1e0bbe 100644
--- a/presets/apple2/lzg.c
+++ b/presets/apple2/lzg.c
@@ -1,3 +1,7 @@
+/*
+LZG decompression library.
+See lzh.h and https://liblzg.bitsnbites.eu/
+*/
 
 #include <string.h>
 
diff --git a/presets/apple2/lzgtest.c b/presets/apple2/lzgtest.c
index eddbc850..98bfa752 100644
--- a/presets/apple2/lzgtest.c
+++ b/presets/apple2/lzgtest.c
@@ -1,3 +1,7 @@
+/*
+Test of the LZG decompression library
+with a hires graphics image.
+*/
 
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/presets/apple2/siegegame.c b/presets/apple2/siegegame.c
index f8d4318d..ab5d4bdc 100644
--- a/presets/apple2/siegegame.c
+++ b/presets/apple2/siegegame.c
@@ -1,3 +1,7 @@
+/*
+Text-based version of a Blockade-style game.
+For more information, see "Making Arcade Games in C".
+*/
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/presets/atari8-5200/siegegame.c b/presets/atari8-5200/siegegame.c
index b0c9489f..60ff8800 100644
--- a/presets/atari8-5200/siegegame.c
+++ b/presets/atari8-5200/siegegame.c
@@ -1,3 +1,7 @@
+/*
+Text-based version of a Blockade-style game.
+For more information, see "Making Arcade Games in C".
+*/
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/presets/c64/siegegame.c b/presets/c64/siegegame.c
index 8ab98d55..33c22de5 100644
--- a/presets/c64/siegegame.c
+++ b/presets/c64/siegegame.c
@@ -1,3 +1,7 @@
+/*
+Text-based version of a Blockade-style game.
+For more information, see "Making Arcade Games in C".
+*/
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/presets/coleco/siegegame.c b/presets/coleco/siegegame.c
index ef0b30ea..718fc601 100644
--- a/presets/coleco/siegegame.c
+++ b/presets/coleco/siegegame.c
@@ -1,6 +1,5 @@
-
 /*
-Demonstration game.
+Text-based version of a Blockade-style game.
 For more information, see "Making Arcade Games in C".
 */
 
diff --git a/presets/msx/siegegame.c b/presets/msx/siegegame.c
index e7024b21..125596be 100644
--- a/presets/msx/siegegame.c
+++ b/presets/msx/siegegame.c
@@ -1,3 +1,7 @@
+/*
+Text-based version of a Blockade-style game.
+For more information, see "Making Arcade Games in C".
+*/
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/presets/nes/siegegame.c b/presets/nes/siegegame.c
index 5cd98d8b..eb848dd4 100644
--- a/presets/nes/siegegame.c
+++ b/presets/nes/siegegame.c
@@ -2,7 +2,9 @@
 A character-based surround-the-opponent game.
 Reads from nametable RAM to determine collisions, and also
 to help the AI avoid walls.
+For more information, see "Making Arcade Games in C".
 */
+
 #include <stdlib.h>
 #include <string.h>
 #include <nes.h>
diff --git a/src/ide/views.ts b/src/ide/views.ts
index 5c48f27d..971c9d4d 100644
--- a/src/ide/views.ts
+++ b/src/ide/views.ts
@@ -97,6 +97,7 @@ export class SourceEditor implements ProjectView {
     this.newEditor(div, asmOverride);
     if (text) {
       this.setText(text); // TODO: this calls setCode() and builds... it shouldn't
+      this.editor.setSelection({line:0,ch:0}, {line:0,ch:0}, {scroll:true});
     }
     this.setupEditor();
     return div;