Hi
I'm sad I know, I googled your monitor and it seems that it is Vista certified but does not come with XP drivers nor, is seems are any available.
It also seems there are many people a bit upset about this and having simmilar problems as you.
Some have said that setting the resolution to 1680 x 1050 and installing new video drivers cured it but most didn't.
The concensus seemed to return it and get a 19" hanns-g which have XP drivers.
I can't really argue with the logic.
Oh one thing you might try use a straight VGA cable, (d-sub) not one of those DVI-I jobbies. It might help as analoge only?

