Whenever we try to enter a PO Description in the PO Desc field, we are getting the following error:
 
The field to be entered was not in the screen buffer.  Please make sure you have 'MOUNTED' a screen and that the field is on that screen.
 
This is occurred since we put a new update on Tuesday night (to upgrade to 6/20/05 and from 2002.4 to 2004.1)
 
Any ideas?