Sage Converter becomes the default printer in Windows 7

Hello,

My office environment has about 30 terminals, all with MAS 200 v4.40, using Sage 300 converter.  I am having a problem with my terminal. Sage Converter will randomly make itself the default printer. Then I go into devices and printers to change the default printer to a regular printer. Sometimes this occurs several times in a day. This is something new that started with the install of a new printer that should be my default printer.

I cannot pinpoint a trigger for the problem. Our IT guy doesn't have a solution either. Does anyone know how I could fix this issue?

Thanks for any advice anyone might have,

 Debbiejj