Have just bought and installed Canon MP 250 all in one...I try to print off a menu and it comes up "The Adobi acrobat/reader that is running can not be used to view pdf files in a web browser. Please exit and exit your web browser and try again" This is double dutch to me...I think my browser ? is firefox That's all I use.. Can anyone sort me out nice and EASY? Thanks in advance. John (The ancient nut).