Well recently i did a new OS install of windows 7 and my mouse has started to move up whenever i use it. i can still move it up, down, left, right and so on but it always tend to push to the top of my screen. Now i can make it go down and such but it will randomly move up on me when i touch the mouse or try to use it. and ingame it does the same on CSS. anyone have any ideas? iv tried reinstalling the drivers and it didnt work.