Hi, so once my resolution have suddenly changed from 1920x1080 to something like 1024x768 and i thought i have just killed the ghraphic card, so i bought a new one- geforce gtx 1050ti,installed newest drivers, but now i cant go over 1600x1050. I tried plugging it into my 4k tv and the resolution went on 4k. Whats wrong? Cheers for any help