Solved I'm noticing diagonal line pattern across monitor

fading in and out. as if it were interference of some type? what can this be?

Check your graphics driver in device manager.
Make sure it is up to date.
Make sure that you are using the correct resolution
Check the refresh rate.
http://www.vistax64.com/graphic-cards/116064-monitor-flickering.html

I also suggest you do the same for your monitor driver while you're at it. If that doesn't do the trick, post back (possibly with a screenshot showing the line) and we'll check out some other options. Even if up-to-date, you may want to consider updating them anyway just to rule out that the current version is corrupt enough to cause this problem but not so bad that it is recognized as a problem. I suggest you get them from the manufacturer of the device or of the computer if it came with the computer rather than Windows Update. If you've used Windows Update to do it and still have the problem, try again using versions from the manufacturer web sites.

In the meantime, go to Control Panel / Personalize and try some other display settings, themes, and color/appearance settings to see if the line appears regardless of the setting.

If it just started, you may also consider a System Restore to BEFORE the problem started - that often solves this type of thing.

I hope this helps.

Good luck!

what am I specifically looking for in Device Manager- display adapters? It would be tough to get screenshot- you have to pay really close attention to see them.

Look for any yellow markers. Go to the graphics card and make sure that it is current.
Right click on the driver
properties
details

And I was looking for a screenshot of your screen showing the diagonal line - any screen will do.

Thanks!

OK, I went to WINDOWS UPDATE and found- surprise, there was an update for NVIDIA.


and I successfully updated it. By some miracle.



here's the desktop tho you won't see the lines in this SS.

Thats graphics driver, I think it may be solved

Do I have to restart PC to see any change? I still see the diagonal lines.

Yes reboot, if still there follow the other steps.

richc46 said:

Yes reboot, if still there follow the other steps.

Click to expand...

OK let me try that

rebooted. no difference, no change at all.

Lorien gave you other advice and so did I. Follow instructions and lets see what happens.

tried everything, still remains. curiously..I have noticed the same pattern on my Comcast cable TV. COuld this be interference from outside? Electromagnetic?

If you also have it on your TV, which is independent of the Computer, the source would be from the outside.

Is it a lappy that you could use elsewhere to test?

no laptop to check. This is curious.

Well then I have to assume that it is an ouside source if its on the TV too

TV is not plugged in to same wall socket and not connected to computer in anyway, correct?

I do have cable routed into PC for WIndows Media Center.

You could unattach, for test, to see if line is still there.
If the line is no longer on TV or Computer the problem is more isolated. If still there definately outside source.
Its a pain to do, it is up to you.