I had that happen before. (A couple of times.) The fix that worked for me was to upload a fresh admin.php file from the phpnuke zip file that I downloaded. It seemed to have happened because of a mod I wrote in to the admin.php, but it happened before when I modded something else that had nothing to do with the admin.php. Not sure what causes it, but that's what fixed it.

-Imago

http://furs4you.info