HI, I have put together a multimedia presentation, and placed it on a CD-ROM to autoplay. On some machines it causes an illegal operation on a fresh reboot, but will work after it is tried again (without rebooting)--this only if it doesn't lock up too much memory. Sometimes it locks up all my memory leaving me with 1% resources free, and i can't even open "My Computer". It once worked fine on my laptop, until one day when I had to reinstall Windows, even though I reinstalled with the same version as before (win 98se). Thanks! David Toushek Curious about the people moderating your messages? Visit our staff web site: http://freepctech.com/staff.shtml