Everything was working fine, different files with different groups having access. Then this morning, when I log-in as the group administrator, it keeps recognizng me as one of the group names. I know that last weekend someone from that group was posting to the wrong area so I deleted all the files and attempted to delete the group. No results. The files are still there and the group will not delete. Any suggestions anyone? When I log-in to my File Manager on my comp., everything is normal.

Based on your description, you probably have some proxy server caching some dynamic web pages. Please make sure you refresh your account. If you logged on as UserA, then after successful logon, you should see on top of your browser window "Welcome UserA", if it still displays "Welcome UserB", then either this page was cached, or you had already logged on as UserB and had not logged out UserB before you tried logon as userA.