After some MS wired mice proved unreliable with Macs a decade ago, i don't see a lot of peple around here using their current mice which actiually seem to be OK.
Although it's for Mac Office, you might ask in Microsoft's Mac forums here:
Someone may have an idea, plus MS employees commonly post in that forum.
Also remember that, regardless of make, mice get a workout and fail at a rate higher than most other computer peripherals. Yours may have packed it in and it's time for a new one.