Working on a patch/fix for that error. Once its completed(should be soon) I'll PM/post here for you. Sorry about that.
Im assuming your running Windows 7/Vista 64 Bit?
Edit: Unsure if this may help.
Are you the admin of the computer? Meaning are there multiple accounts on your computer and if so are you set to admin on the account your using? If your not you will need to log into an admin account





