So recently i reinstalled a fresh copy of my OS. This was because my old mouse broke and caused a defect in the drivers leading to a BSOD. Anyway i had to buy a really cheap mouse (£3) to keep me by untill my good mouse gets fixed but problem is ever since i reinstalled my OS i keep getting screen tears in game. Mainly in Counter Strike GO when i never had any problems before. Just wondering if its pc related or mouse related and if you could help. just to mention my GPU driver is up to date!