I found a solution that worked for me; hopefully this helps someone else. I discovered that AC would not work unless I logged out of my Windows profile, and then logged back in under a different, non administrator log in name. Figuring this meant that it had something to do with permissions, I checked the folders. By going to C\users\tim\documents and then right clicking on the AC folder, checking "properties" and then the security tab, I noticed that the other log in name was listed but my real original profile wasn't. I clicked "edit" and then "add" and typed my name in the "object names to select box" and then clicking check names, it came up with my original log in name. I made sure the "permissions" were set to full control, and voila, it worked finally without having to log in differently. If this helps you, please let me know!