Reinstalled mouse as i was told, and i will wait for future problems, in case they appear. Forgot to tell that this problem occured a few times per day, so if anything gets wrong, i will post here again. By the way, i am using a PS/2 mouse, not a USB one, so i guess it may have been a problem with a wrong driver
maybe. Thanks in advance, and I will post here if this problem occurs again.