Hi,All i got my 500 today so I thought I would start out simple and use the system 17 from factory set up to see how it works.I cannot get it to work for the life of me its stuck in and on 8 i believe .ive tried proable a 100 times cannot get it to change WHAT I'M doing wrong well I hope its me thanks in advance I have pro96 and 396 and not this many problems out of the gate.