Downloaded a pic from the Internet as wallpaper. Wanted to send it to a friend. Found the folder but it was hidden. Fooled around with permissions and sharing for awhile and managed to get to the folder. Copied the pic. When I tried to open Outlook to send it receive the message: "Unable to open your default email folders. File access denied. You do not have permission to access ....Outlook.pst." Tried resetting everything, uninstalled and reinstalled Office, and also reinstalled Windows, all with no luck. Now I also get "An extension failed to initialize. Can't open file: extend.dat...." How do I correct this? Thanks...