I just finished repairing files, and it was time-consuming, which is why I haven't posted back, but I did read all your comments. They haven't run out of disk space, and I believe the original problem was created by one user only, who was trying to update the sales journal. Subsequently, no one could update because the PL_JournalPDFLog file was corrupt, and I believe the SO_InvoiceHeader file got corrupted at the same this morning as the PL file. The activity log only showed 105 and 106 errors from this morning. No disconnects, or AV, at least not that anyone admits to. I have turned off PEP and followed the recommended procedure. We'll see what happens now. Thank you all for your quick responses. You guys are the best!