LyX 1.3.5 for Windows - no preview

[Paul A. Rubin]

Regarding the error when trying to preview formulas ("Could not fork: 
Exec format error"), I noticed that the copy of the 1.3.5 port I just 
downloaded from Sourceforge lacks the lyxpreview2bitmap.sh script in the 
scripts directory.  I copied the script from 1.3.3, but the error 
persists.  In fact, I tweaked the script to echo a comment at the 
beginning, and it never got even that far, so apparently the script was 
never executed.  Don't know if any of that will help pin down the error.

-- Paul