Don't know if this is the correct place to look for an answer to this problem but I have not found any better place to report the problem. I selected an existing X64 server and installed a copy of 2008 server to look it over. However, after running for awhile (around 2 to 30 minutes) it just stops. It appears to trash video memory in the process. Ctrl-Alt-Del does not have any result, it does not ping, it doesn ot soft power down, it does not take a dump, there are no events or errors logged that I can find. I replaced (and increased) memory to no effect. I have considered adding an external video card but I can't identify a specific match. Anyone have any suggestions or was this a premature idea?

What hardware are you running it on to be more specific? Dell, HP, Fujitsu, home-built? Certified for Windows? All drivers correctly installed?