The USB ports on my laptop stops working once MyBook connected

Hi

If mybook Model WD2000H2NC-00 is connected to my laptop it stops the USB ports working. If I restart all is well again until the Mybook is switched on / connected. This occurs with a direct RJ45 connection or via wireless router.

OS is Vista

Tried uninstalling USB’s and reinstalling drivers. Worked until next connection of the Mybook.

Would appreciate some help.

Many thanks in anticipation

Littlej

Are there any faults in the event viewer?

Joe