OK, I hadn't fixed the previous problem and now I have a new one. Somehow, someone recovered the archivelog and archivelog backup folder from a backup. The last archivelog before this happened was at #327. The logs someone restored ended at #276. Now the DB is archiving the logs at #277 and so on. So now I get an error RMAN-20032 checkpoint change# too low. If I do 'change archivelog all validate', it looks for log #'s 326 and 327 and can't find them. Is this because RMAN is looking at an older control file? Is there anyway to reset RMAN to the new sequence scheme, do a full backup, and go on from there? I just don't understand why someone would restore the archive folder from a backup. Thanks for all the help.