sandriloune:
i tried....not working...still have the same problem
you never said if it is wired or wireless. Another thing to try if it is wireless is to reposition your receiver.
If it is wired and USB try another USB port, And if that works then it might be time for a new computer. And if nothing works then it is definitely time for a new computer because your board is most likely shot. But I guess you could add a new USB board.
Oh you might check your mouse settings to see if it is on some sort of auto fire.