Hi, yesterday I had a problem with the graphics card. Suddenly a 16 bit color showed in my monitor and changed the resolution to 1024 x 768, by default was 1680 x 1050. I restart my computer after this and i didnt changed something, i did uninstall/install with several updates but nothing change. When i choose the NVidia Control Panel settings keep getting message "display not attached to a GPU. There is a solution to the problem except to buy a new graphics card?