PC Adapter MPI

Hello people
I have an MPI PC adapter wich I was able to set up on my desktop computer, now I need to install it on my laptop, but it doesn't work.
Iam running xp on both computer.
I have the same configuration for the PG/PC interface... MPI

am I missing anything??
Yes the usb port is ok.."the mouse works"
thanks

Use the Properties button / Local Connection and make sure it is set up to use USB.

It was set to COM 1.
It's working now
Thanks a lot.