Check the batteries first and even if they appear good replace them. A few
weeks ago I booted my machine only to get to the logon screen and find my
wireless keyboard wouldn't work. The batteries were fine but, all the same,
I replaced them and reconnected the keyboard to the radio base station.
After a reboot everything was fine.

So try the batteries and then try to reconnect the mouse to the radio base
station.

--

--
John Barnett MVP
Windows XP Associate Expert
Windows Desktop Experience

Web: http://xphelpandsupport.mvps.org
Web: http://vistasupport.mvps.org
Web: http://www.silversurfer-guide.com

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"vi" wrote in message
...
My wireless mouse keeps freezing on this operating system(vista) but
operates fine on computor with xp. Oh to go back but I can't. Says
drivers are up to date. Wake up is on but when it goes to sleep or isn't
used for a while the mouse freezes. Is there a fix?