ah yes! the print dialogues are different on the two printers -- you will have to rebuild your favorites on the Pro-100. but the print quality is so amazing!! Assuiming that you are using something like LR or PS, be sure that EITHER you (1) use ICC ...
Did you ever find a solution?I had precisely the same problem - except that i have owned both printers for years. Yesterday i updated my printer driver off the Pro-100 site, and it has taken down my MG8120. (I already lost the scanning function off...