[eluser]Dam1an[/eluser]
[quote author="TheFuzzy0ne" date="1240517334"]That's very true. Thanks for pointing that out, although I'm not assuming the OP is using an admin account. The only other thing I can think of is that the OP isn't clicking on "Apply", although if memory serves correctly, Windows does it for you when you click on "OK".[/quote]
Yeah OK and apply have the same end result, but OK closes the dialog as well as making the changes, where as apply just makes the changes
You can always install a set of unix tools for windows, these let you view file ownership, can change ownership, change file permissions etc