Bit of a strange one that has me a bit stumped.
As you can see in the screenshot I'm getting a weird black border round all the navigation and tab icons in firefox as well as all the icons on webpages. It's also doing it to the system tray icons and the desktop ones as well. It comes and goes, one minute its normal, then it goes all strange then a few mins later as you move the mouse over them one by one they return to normal. I first noticed the problem after upgrading from 2 to 4gb of RAM earlier this year. However I have run memtest and can't find any problems with it.
Anyone got any suggestions? Could it be the graphics card? Spec in sig, though I run my GFX card at stock speeds 99.9% of the time.
Thanks in advance.
Dave
As you can see in the screenshot I'm getting a weird black border round all the navigation and tab icons in firefox as well as all the icons on webpages. It's also doing it to the system tray icons and the desktop ones as well. It comes and goes, one minute its normal, then it goes all strange then a few mins later as you move the mouse over them one by one they return to normal. I first noticed the problem after upgrading from 2 to 4gb of RAM earlier this year. However I have run memtest and can't find any problems with it.

Anyone got any suggestions? Could it be the graphics card? Spec in sig, though I run my GFX card at stock speeds 99.9% of the time.
Thanks in advance.
Dave