Sales Order Entry --> Customer Maintenance --> Paperless Office Settings Issue. No accept button.

Using 100c 6.20.2.0 Premium.  Having an issue where if a user accesses customer maintenance from the SO entry screen (either by customer number hyperlink or the 'customer' button in top right), then attempts to modify the customer's paperless office settings, the accept button on the paperless delivery options window simply disappears.   This happens the moment you make a document selection in the combo box. 

I've verified that this happens to users with FULL rights to the system, tried resetting the panel, but no luck.  Even if you make a change to the paperless office settings and 'X' out of the window, you're not prompted to save changes.  This issue does NOT happen when accessing paperless delivery options from a Customer Maintenance window launched directly from the Sage menu.

Anyone have any ideas about this?  Thanks in advance.