Hi....
Hmm... Could have a mouse problem.
First :
make sure the computer is off, Unplug the mouse and plug it back in again...
also known as reseating the connection. and Reboot or turn the system on. if that doesn't work.
Then :
Do you have a spare Mouse handy? If you do you unplug the suspected bad mouse and try the newer mouse.
Remember to shut down computer before unpluging and pluging PS2 mice..
These are the round style connectors. if you have a USB mouse same thing shut down computer plug it in fire her up again. Under normal circumstances A USB device can be pluggeg or unplugged while the system is still running.
If this doesn't work...
Then we'll try some thing else
Zorbtion