keyboard and mouse work for a few seconds at start up then freeze

[Guest]

-windows xp
-dell dimension 9150


The computer starts normally, loads up the blue login screen. I can move the
cursor around the screen and type on keyboard. Then after roughly 3 seconds
(always this amount of time) the cursor freezes, the mouse inoperable and the
keyboard locks up at the same time (num lock light goes out). I have to
manually restart.

I can boot to safe mode and both the mouse and key board work perfectly.

Yesterday I intalled a Microsoft Wireless Laser mouse 6000 and it worked
perfectly all day, this morning the problem occureed.

I have unistalled, then reinstalled the mouse driver, updated the mouse
driver, no joy.

Please can some one offer me some help.

Thanks in advance.

 

[RobinS]

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Robin S.