Casio CZ/ VZ/ FZ - Pro Series

Hey guys,

Back in the good old days - y'know when hit music was still called disco, when people thought drum machines sounded great and when it was ok for a guy to wear pink and put tons of gel in his hair (and blowdry it!) - back then I was the proud owner of a CZ-101. My first synth! Thanks to it I still have music making as my #1 interest today. Well, the CZ-101 was replaced by a CZ-1000 which was later replaced by Rolands and Yamahas. I've never forgotten my old Casios, though, and it was a very special moment for me the other day when I found and bought a used CZ-5000. It didn't come with a manual and although I actually do remember some details from my old CZs, there are a few things I'm curious about... Can you help?

1. If I program a new patch and save it in one of the user memory slots, say A1 by pressing the Write-A-1 keys, it's stored properly for as long as the machine is switched on. When I switch it off, the user memory banks are cleared. Is this a fault, or do I have to do some something more to persistently save new patches?

2. I'm wondering if there's some midi sysex program for my computer (PC, WinXP) I can use to load and save programs to/from the CZ-5000. If so, can you please send me a link (or mail it to me)?

All the best, 
Peter