My wireless mouse freezes

I had a similar freezing problem with a wireless Logitech mouse and also a problem with the wireless keyboard, sometimes keystrokes would not register and sometimes they'd repeat a dozen times.
I was not able to fix the problem, so I got a Microsoft wireless mouse and keyboard, hoping it was a driver conflict that wouldn't affect both products. Wrong. The exact same thing happened to the Microsoft mouse and keyboard.
The cause of the problem turned out be that I had the receiver plugged into a USB hub along with several other devices. Moving the receiver to one of the USB ports in the back of the PC fixed the problem.
Apparently these wireless desktop devices don't like sharing USB resources with anything else.

I had a similar problem. The mouse was working intermittently and it wasn't the usual run down batteries symptoms you can fix by clicking the green button and eventually replacing the batteries. After reading the solution above about the USB ports I realized it might have to do with the new printer/scanner/copier/fax I hooked up yesterday, so I reached down to the telephony modem I messed with yesterday, moved it back to the way it was before, tightened up the cable, phone, and power connections, and lo and behold, the mouse worked perfectly again. I am no techie, and I have no clue why a wireless mouse would respond to messing with cable, phone, power, or a modem. Maybe it has something to do with the line of sight of the optical scanner on the mouse, but I doubt it because of the solver's USB solution. I'm just glad I don't have to go buy a new mouse!