ms intellimouse explorer 3.0 problem

[Secret_Window]

Hi, I've got the new dark grey silver ms intellimouse 3.0 which I've I think almost a year now, and it has this strange bug where in games it will switch to other weapons by itself. I've also noticed it isn't reading surfaces as well as it used to.

Is there anything I can do to fix this?

 

[Secret_Window]

I have this one: http://www.overclockers.co.uk/showproduct.php?prodid=KB-060-MS&groupid=702&catid=23&subcat=3

The new improved version of the 3.0. But, already like I said it's already showing signs of wear. I might give that a go, taking the mouse apart, but I don't really like the idea to be honest.