8800gtx - monitor issue
im havin a problem with a new build.
sometimes just as windows XP logs on and the desktop comes with all icons as usual, the monitor goes black. the pc is still running, but there's no image.
i tried the pc with a crt and the same thing happened and the monitor displayed that it was working but there was no connection so could it be the GFX card?
the problem can occur three times in a row or sometimes not for days, so its hard to test different settings. it's usually just a case of restarting, running scandisk then gettin on with things.
oddly i connected an analog lead from gfx card to monitor (as well as digital which is what i use), awaited the blackness, then turned to analog mode on the monitor and i could see an empty desktop (i've since discovered this is acting as a second monitor on a dual setup and icons would be on other monitor if using two)
Arctic Cooling Freezer 7 Pro
8800 gtx 768mb
GeIL PC2-6400 C4 Black Dragon
any ideas folks? thanks in advance