I found a workaround for this issue. 

Go to Organizer for 1040 HomeBase

Select File, Print Options

Control Which Forms Print

Under Short Organizer, make sure "Never" is selected for all forms

Still Under Print Options, Go to Control Which Letters Print

Select which letter you want to print with the organizer

Go back to HomeBase

Highlight which clients you want to print the letter for and select File, Print, and then select Short Organizer.

There will be no forms to print, but the letter will print.