Hi

I have a problem with my Quadro 4000.
Some time ago the first DP stopped working.
The second DP port works, but there are massive problems with anti-aliasing of fonts and icons. It seems like the pictures and video is being displayed correctly. I can get maximum resolution (just over 2K, don't remember the exact number)

DVI ports works fine in regards of anti-aliasing, but I can't get a higher resolution than 1980-1080 (and on Dell 2711 with over 2K resolution it is a major limitation.)

I tried to install updated NVidia drivers and reinstall entire system but without any results.

I bought entire system from SCAN in May 2011, so unfortunately the warranty is over as I believe.

What could cause the aforementioned problems with the card?

Kind regards,

Tom