I'm running Windows 7 on a Macbook Pro via Bootcamp. Recent (most recent windows update, maybe?) I started having this issue:

The external drive (with two partitions) plugged into one of the two USB ports gets nested underneath the keyboard/trackpad, so I can't eject it. If I eject the trackpad/keyboard, I can no longer interface with the computer, unless I plug a USB mouse into the other USB port. The other USB port does not behave this way with an external Drive. Any ideas as to why this is happening, or how to correct it?