When shutting down an external drive I am getting the message "cannot stop drive now, try again later". Does this indicate a problem and is there a way to correctly deal with this? I have just carried on and shut down, and so far so good, but I understand that doing this could cause a problem.
If you are using XP, Turn off Restore for the drive, You only need it for your Operating System Partition. Then try stopping the other in the Right click on the System Tray icon. you may have to reboot after the system restore bit.