We are experiencing a situation with a client that has been running GP for over 10 years and since we did the update to GP2013 and applied the 2013 Tax Update in January, we have not been able to generate 'groups of purchase orders'
Single POs are printed when they are created from the Purchase Order window, but if we go to the Print Purchase Order Documents window and select a range (or even a single PO) nothing prints.
I have attached a screen shot of the window as follows:

When we click PRINT we get the Printer Dialogue box, we get the option to print STANDARD, Screen, Printer or File. We click on SCREEN and then OK then get nothing from the system.
We have looked into the PROCESS Monitor screen as we are doing this and there is nothing there at all - it is blank. As a test we generated the Historical Aged Trial balance and watched the report process into and out of the PROCESS Monitor as it has for the past 10 years - nothing wrong with that process.
So our question is 'where are the POs?' What are we doing wrong:? We need some assistance as soon as possible.
We are running GP2013 12.00.1538 with Horizon Manufacturing as the only 3rd Party application.
We have no modified or customized FORMS.