I am using win XP home on an HP a1000n desktop,2.9 celeron chip and 512 RAM. I am trying to install a labtec optical mouse that I recieved last xmas. I have installed the software via CD twice and it does show up in my programs list as active. When I plug in the mouse either USB or PS2 it has no effect on the cursor. The mouse batteries are new, the sender unit is getting power, but it refuses to work.I have tried restarting the computer. Any and all ideas are welcome.

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