Thanks RueB2sDe for setting my mind at rest. I changed the graphics card for an old ATI Radeon 9550 out of my 'Heath Robinson' bedroom TV (an old computer with total media center) and everything is...

It just crashes to a black screen. Everything appears to continue, although the red LED stays on and it just stays like that until I power it down. Not hibernation and no system messages. Sometimes...

Problems setting up new system:

Details: Motherboard PCChips ECS M860 with Athlon 2800+ CPU (bundled from Misco)
80GB Maxtor HDD (IDE Secondary Master)
Lite-On DVD-Rom/ CD-RW (IDE primary...