Hi Andrew,

The change to SMB1 will only solve the problem if it was the Adagio workstation that was running Vista.

After you restart your server, it would be useful if you would install the System Updater without installing the AR Service Pack to see whether the problem re-appears in Payables.

If you know that all the invoice, and check batches have been posted in Payables, then there should be no files APIddddi.DAT/APIddddH.dat/APIddddD.dat (for invoices) or APCddddI.dat/APCddddH.dat/APCddddD.dat (for checks) in the Adagio data subdirectory.