MS bluetrack wireless 5000 mouse no longer working.

Ive had this mouse + keyboard package for a few months seemed fine now the MS wireless mouse 5000 (bluetrack) seemed to periodically stop working more and more over the last few days, i changed the batteries about the same time it was working for a bit then freezing the green light comes on the top then fades out, the blue lazer underneath appears to be working fine i would plug the recivier in and out and it would work for about 10 secs then stop now its saying USB device not recognised when i do this or not detecting it at all, this is weird as its workign fine on the 2 other laptops i used it on both run vista. the problems occuring on this toshiba a500 17x running 64bit windows 7.
ive just reintalled the IPx64_1033_8.0.225.0 intelli 8 driver but now only have the ps2 driver listed on my hardware tab in mouse propities and its just calling the mouse unrecognised usb device & 'Windows has stopped this device because it has reported problems. (Code 43)'
I even re-installed the toshiba new hardware driver. arrg its driving me mad please help.
I tryed a different wirless mouse cheap lazer jobbie and this is working fine in my usb ports :S

I learned the hard way to never ever buy Microsoft mice, looks like your about to too.

The mouse i have (wireless mobile mouse 6000) is terrible, the wireless lags A LOT, significant dropouts in connectivity, and i had to buy two because the usb connector for the first one literally burnt out after one day of use (2 hours actual, about 6 plugged in but turned off)

Always go Logitech IMO

I know this doesn't help fix your problem but its a warning for everyone else.

Judging my the fact that its a Microsoft mouse, I would say there is no known fix for you problem. Microsoft doesnt care, as long aas they get the money, they are happy.