I'm having issues with my external Hardrive. Its a Seagate FreeAgent Pro, 320 GB.

The light on it comes on when the power is to it and the computer, however the Laptop isn't reading that its plugged in.

It reads other things plugged into the USB, however it doesn't want to register my External.

IT worked on my last computer, and all may data from it is on there.

Any Ideas?