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Display artifacts running in portrait mode

I am running Windows 7, 64bit mode, with N-Vidia geforce latest drivers, with "clasic" theme. Dual monitors- primary is standard, secondary in portrait mode. I have some lag and artifacts left on the portrait screen like in attached image.

I am running Windows 7, 64bit mode, with N-Vidia geforce latest drivers, with "clasic" theme. Dual monitors- primary is standard, secondary in portrait mode. I have some lag and artifacts left on the portrait screen like in attached image.

All Replies (2)

Sorry, no image uploaded.

People have been having issues with hardware acceleration. This thread discusses turning it off.

https://support.mozilla.org/en-US/questions/1075185