Maybe a Graphics problem

[mbncd]

If you're in Brisbane like me, the temperatures here were around the 40C mark over the weekend. That could be a cause. The coming week doesn't look to be anywhere near as hot though.

Edit: And if you're looking for a cheap but good computer parts store in Brisbane, check out MSY. There's a branch in Morningside and another in Slacks Creek (and others around the country). They offer the best computer bang for buck I've been able to find. Good luck. Sorry I can't offer any advice on specific cards by the way.