Thanks Kevin. Yes ATI removed and arcadevga drivers down loaded. Like I said this is the exact same set up I had running perfectly 2 years ago. Same computer, sme monitor, same arcadevga card. It's weird.
How do I change the resolution back when I can't see the screen?
I'll have a little fiddle in the BIOS and see if I can see anything (I have a feeling you may be on to something there, I'll let you know how it goes).
Anyone else feel free to chip in please!