I'm trying to upgrade iTunes and keep getting an error message that says something to the effect of "iTunes does not have enough privileges to access the file MyComputer/ProgramFiles/ITunes. Please log in as the administrator or notify your system administrator." I am the administrator!! No one else uses my computer and I'm not on a network. I've tried completely removing my older version of iTunes using Add/Delete, but it didn't help. I've tried reinstalling much older versions of iTunes but got the same error message. Any ideas/tips? Help? Please?