Hello, I use vista ultimate x64 on this pc:
mb intel d955xbk, cpu p4 3.60 ghz, ram 4 gb, vga geforce 6800 ultra pci-e.



After few min, vista slow down and the screen have a serious refresh
problem, it's very very hard to use the system in these conditions.
I don't have any overclock or application for overclock.
I must restart the system and I can use it for other few mins...
Someone know why ?