I always redirect the people to the M$ Supported Vista Users Community here as M$ needs to know what problems are being found with their second rate software and need to fix it fast but at the same time you don't need to be sitting on a phone to M$ paying them good money not to get an answer. So the M$ Vista Community Site is here
http://tinyurl.com/yt8adb
[i]Are there different permissions between the different versions of Windows Vista?[/i]
Yes as different versions of Vista are just cut down deactivated versions of the Enterprise Edition of Vista. Actually every version of Vista comes on the Install DVD but the Product Key that you enter tells the DVD what to install so you only get part of the entire thing.
Col