I've just received my lovely new desktop today
but I've just plugged it all in and hit the power button.....
The unit powers up but on the monitor I'm getting loads of strange patterns and colors flashing
I've tried it first on my LCD then thought I'd try it on my old CRT but I get exactly the same display.
Anyone got an idea whats up please?

The unit powers up but on the monitor I'm getting loads of strange patterns and colors flashing

Anyone got an idea whats up please?
