I have this peculiar problem with a system. It just hangs when the system is idle for 15-30 mins. while working no such problems hrs together.
turn off hdd is set to never
it is a P4 system with intel m/b ,256 MB SD Ram( 128 x 2), Ext. Graphics Card (nvidia 128MB) and the OS is winxp sp2
we tried changing the memory and the graphics card also still the problem is there...