You didn't say which version of Windows 7 you are running (Home, Pro, Ultimate). This could be very important as Home version has issues with compatibility settings, if I remember correctly.
Running windows 7 Pro SP1
Also, what is your shoe size!!! If Windows detects your shoe size as larger than the operating system size (shoe size 9 vs. Windows 7), it could cause administrative issues.
:)
This must be my issue, shoe size is a 10.5.
