I wish I had your luck. I have still not been able to get MP Navigator 3.1 working on my Windows 8.1 laptop. I connected the printer via USB cable, and after a while, Windows reported that it did not recognise the device, and the printer did nothing....
H, MarkII (or anyone else that can answer): When I try to set the product name in the Preferences for MP Navigator EX, I first have to open MP Navigator EX, don't I? Well, when I do, that error message pops up, and the only thing I can do is click OK...
