Bob has a good explanation and understanding. Bob asked about this in the Lifesaver Tips & Tricks thread last year.
I believe the messages have been there for more than a year now, and can be disabled; if so inclined. They aren't pop-up ads, though. Very discrete, and optional.
The messages appear on the unused "image preview window", on a blank invoice screen. (where your art image will go, after populating line 1 of the invoice)
From what I have seen, the messages have been from the industry partners who are making it possible to offer the program for free. (Larson-Juhl, Tru-Vue, DigitalCustom, PowerPay, etc) They are promoting things such as free modules/features that are built into the program, and can be clicked for details.
With a dual monitor setup and FrameVue, it's not necessary to show the measurements, moulding/mat item numbers, workorder comments, extras, and price breakdown on the customer's (public) screen. Customers will more likely to question things such as the cost of labor or the cost of the glazing, and more likely to write down the part #s. Show all this is of course an option, but it's also possible to keep this info on the private screen only - and just send the final (comparison) results to the customer's side. I can give instructions to accomplish this, if desired.
Best regards
Mike (back from vacation!)
Get The Picture