Can't eject My 1T Passport

After I copy all I need (no more programs running) the status led keeps blinking and Windows 7 gives me the message that the drive could not be ejected.

How can I know what’s keeping my passport busy?

This is getting annoying, everytime I copy some movies to the drive I have to restart the PC to safely unplugged the drive. Is this how it’s supposed to be?

I have the same problem with my 500gig passport. I found a page online that says first make suure you dont have a antivirus program thats using the drive and if that doesent solve it try unchecking the allow indexing button under the drives properties. They say if that doesent work you gotta shut down to remove. I must say ive had so many problems with this drive… considering taking it back and getting a seagate one.