A very interesting problem. I saw this once in a Dell with a bad video
card (It refreshed somewhat more often.) I switched to the onboard video
card and the problem was solved. I'm not sure if it was related, but the
motherboard died a few months later.
I'd start by removing and re-seating the video card, or adding one if
it's an on-board video and you have a slot for a card.
Does this phenomenon occur in Safe mode? If so, it may be a software
glitch, but I'm leaning toward a hardware problem.
Peter Kaulback wrote:
I have a 2 year old Dell pc that does this refresh every 40 seconds or
so. Regardless of any programs running or not the screen refreshes and
nothing works when this happens.
Specs include: Celeron 2.4 ghz, 1 gb DDR 400 dual channel, 40 gb hdd,
cd-rom, dvd burner, XP Home. Aside from the extra memory and dvd burner
every thing is original.
Full diagnostics from a dozen apps on all parts all show positive
results. The hdd is regularly checked for errors and defragmented.
Any idea's?
Peter Kaulback
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