I just installed a LaCie mobile disk (80GB) with a hi-speed USB 2.0. I'm on a windows PC and running XP. After copying a bunch of pictures and other documents to the mobile disk, I clicked on the disconnect icon and got a message that said "the device is busy, try later". After repeated attempts, I still couldn't disconnect properly, so I shut down my PC and then unplugged the mobile disk. The question is what do I have to do to click on the icon and get the okay to disconnect the external hard drive?

Computers & Internet - LaCie - 80GB Mobile Disk USB 2.0 80 GB Hard Drive