Yes I knew my message did not mean much but was so frustrated, and now I found (after 3 hours and 50 reboot) what was wrong: MYSELF!!!: I did my testing with a script that didn't do a good error checking, there was a file that had to be opened that I forgot to copy on the two systems that crashed. Grrrr^%$%##. Now my script works fine. I still do not understand why the demo didn't work either.....probably another stupidity from my side. Very sorry about that, I'll continue my tests and let you know. If you know of any incompatibility please tell me, I would like to distribute something to our Africa partners who know very little about computers and may even run Win3.1.