Autorun problem

Can somebody please help me here!!! My client is furious!!!
I’ve created a screensaver (from a flash file) using 1st Screensaver flash studio pro, and then added a autorun file (using autorunpro) on the cd… the prob is… on some pc’s it works fine, but on other, it autoruns, but won’t stop!!! You must actually press ctrl-alt-del to stop it!!! I’m using XP. It doesn’t work on another pc in my office, thats exactly like mine!

Please let me know if somebody else had that problem before.!!!