I have an ATrend ATC6400 i440GX board and an Intel Pentium II Xeon 450 w/1MB cache. I was using Voodoo3 3000 and it worked great, but now I have switched to a Visiontek Geforce 256 and it locks up when I try to run any 3D accelerated programs almost immediately after they start. I am running Windows 2000 Pro and I have tried the 5.16 - 5.32 reference drivers and still have not been able to get it to work. I then swapped out my hard drive and installed Win98se and that locks up on my too. Does anybody have any suggestions? Thanks in advance for and responses