diff --git a/src/mli.a b/src/mli.a
index c92c3ee..82956dc 100755
--- a/src/mli.a
+++ b/src/mli.a
@@ -29,7 +29,7 @@ PC_SETEOF  =   $02
 PRODOSMLI =    $BF00      ; [callable] MLI entry point
 
 !ct "lcase.ct"
-RAMFileName    !text "PASSPORT.IMG"
+RAMFileName    !text "PASSPORTTMP.DSK"
 RAMFileName_e
 
 ; MLI error codes
@@ -52,7 +52,6 @@ ERR_EOF  =     $4C
 WriteTrackMLI
          jsr   SwapProDOS
          lda   gUsingRAMDisk
-         cmp   #TRUE
          beq   +
          jsr   ReorderBuffer
 +        lda   #$81       ; 'write block' command
@@ -92,7 +91,6 @@ WriteTrackMLI
          sta   mliparam+3
 .writeloop
          lda   gUsingRAMDisk
-         cmp   #TRUE
          beq   +
          lda   mlicmd
          ldy   #$03       ; parameter count
@@ -114,7 +112,6 @@ WriteTrackMLI
          php
          pha
          lda   gUsingRAMDisk
-         cmp   #TRUE
          beq   +
          jsr   ReorderBuffer
 +        jsr   SwapProDOS
@@ -539,7 +536,6 @@ DeleteFile
 !zone {
 CreateRAMFile
          lda   gUsingRAMDisk
-         cmp   #TRUE
          bne   .done
 
          ;existing file being reused?
diff --git a/src/passport.a b/src/passport.a
index cb03bc7..4178a20 100755
--- a/src/passport.a
+++ b/src/passport.a
@@ -482,8 +482,6 @@ nextsector
          lda   #s_passdemuf
          bne   .passprint ; always branches
 .passcrack
-         lda   gPatchCount
-         beq   .passcrack0
          lda   gUsingRAMDisk
          cmp   #FALSE
          beq   .skipram
@@ -491,6 +489,8 @@ nextsector
          jsr   PrintByID
          jsr   WriteRAMToDisk
 .skipram
+         lda   gPatchCount
+         beq   .passcrack0
          lda   #s_passcrack
          !byte $2C        ; hide next LDA
 .passcrack0
@@ -608,7 +608,6 @@ WriteTrackNA              ; entry point used by Special Delivery tracer
          beq   .write
          lda   #s_writeram ; only print "writing to" message once
          ldx   gUsingRAMDisk
-         cpx   #TRUE
          beq   +
          lda   #s_writing ; only print "writing to" message once
 +        jsr   PrintByID
diff --git a/src/slots.a b/src/slots.a
index 459b304..20a6a5e 100755
--- a/src/slots.a
+++ b/src/slots.a
@@ -93,6 +93,7 @@ ScanForRAMDisk
          lsr
          lsr
          lsr
+         sta   .driverbase+1
          lsr
          tay
          pla
@@ -105,13 +106,29 @@ ScanForRAMDisk
          jsr   GetVolumeInfo
 
          ;watch for RAM disk type
-         ;can't filter on device driver because RAMWorks
 
          lda   filetype
          and   #$0F
          cmp   #$0F
          bne   -
 
+.driverbase
+         ldx   #$d1
+         lda   $BF11,x
+         sta   .drivercode+2
+         and   #$f0
+         cmp   #$c0
+         bne   +
+
+         ;RAMFactor detection
+         ;looks like a SmartPort device
+
+.drivercode
+         lda   $d100
+         cmp   #$c9
+         bne   -
+
++
          ;check free space
          ;need at least $118 blocks