I just edited 2 files in the Data File Display and Maintenance for the AP module. I then ran the Rebuild Key Files and Rebuild Sort Files to update everything. However, now when i go to Vendor Maintenance or even AP- Invoice Data Entry, i get the above error and cannot proceed. I have tried to call Support, left my number to be called back, they called back, then 'transferred' me back to support for me to leave my number again!!! I cannot get ahold of anyone to help with this situation. =. Thanks Brandy