problems with my mouse

[hnz]

so recently i got trouble with my mouse.. i can't look freely around anymore. when i try to look left or right the 'crosshair' gets stuck and i need to enter the menu via esc, move the cursor in the middle of the screen and then re-enter the game to look left or right any further until it gets stuck again.
i tried a few things like reinstalling the game, unplug my mouse, etc but nothing worked. i searched in the internet and several pages of the forum but i didn't find anything.
any suggestions?