Good sleuthing. I'd rename the one on the laptop (maybe NTVDM.SAV) then copy over the desktop version.Could it have something to do with NTVDM.EXE? I notice that my copy of NTVDM on my desktop is a bit smaller that the version on the laptop, plus the laptop has three NTVDM files (one in I386; one in Windows\system32; and something called NTVDM.exe-1A10A423.pf in windows\prefetch). On my desktop, there is only one copy of the NTVDM.EXE file, and it's in I386.Harry Binswanger hb@xxxxxxxx