I didn't have a formatted smart card handy - I used the one from my SP202 after saving the samples to mini disc. I then formatted the card on the MC505, initiated back up to card (all) then re initialized MC505 and reloaded the back up to MC505. It worked overnight then in the morning, the sounds (patches)changed again. So I reinitialized again and reloaded backup (the whole thing) and I was still having the same thing happen. So I reinitialized just the patches this time and it has seemed to work without problem since (knock on wood). I am still trying to figure why this happened so I can take care of it so it won't again. As far as the arrows goes - I've seen them before, but not under the previously described circumstance. I think it was when I had powered down and up in a hurry (trying to erase the temporary user pattern in a hurry early on in my ownership). Do you still have this problem?