It sounds like 1 of 2 things to me.
Either 1. You aren't logged on as the administrator, or 2. You need to repair your permissions.
You didn't tell me anything about your operating system so download and launch
DAF the full build.
> click Tools
> click Repair Permissions
> click GO
> reboot (because your computer will be happy)
Light build, which is just Dial-a-fix, and can just do services tweaks and DLL registrations. People who have XP Pro can use Repair Permissions. People who have XP Home must get Medium.
Medium, which is Dial-a-fix plus the secedit package; this allows people who have XP Home to use Repair Permissions.Let us know if that works
@DjLizard - Please don't be upset if you want him to download another build.