You know - I'm going to have another look at my friends set up and have him re-set up the p5 on the 500 he's got and check it out again, all of you seem to be having such good luck with it. The cost of the pro-pak versis the p5 is irrelavant, especially if it doesn't work. But if it does on an 800, I'd be stupid not to get the p5 versis the pro-pak. sigh - I also have to keep my wits - because I really "want" it to work with the 800 and that's definitly not the way to make this descision. Thanks every-one