Thanks for your advice, good to hear that you don't think it will be much problem. I have purchased a 728 from Canada using ebay and am waiting for the chap to send me the total cost. I've really lashed out buying it and if everything goes ok may end up selling my Jornada 720 to cover some of the cost for the 728. Mind you, it's going to be hard to part with the 720, Chris Tilley gave me a lot of help in getting the faulty one I originally bought replaced.....I was originally told there were none in stock but Chris advised me how to ask for the replacement etc. I'm forever grateful to him.
I think I will do as suggested though and uninstall the drivers and tweak software then do a full backup again in readiness.
I'll let you know the outcome.
Cheers,
Downunder Sue
P.S. I'm sure you can fall in love with these machines, I'm lost without mine and use it constantly. The only problem I have is that it is a little difficult to put in a handbag, but I perservere.