Has anyone had this problem: My newly purchased (but of course used) DR 660 drum machine just suddenly stopped working. Right in the middle of editing a drum kit, everything froze up, no sounds, etc. So I turned it off and back on and now all I get is all the pixels on the display are slightly illuminated, but nothing works. I'm suspecting, maybe just hoping, it's the internal battery, but there was no warning about it being low. And I don't know where to get a new one either...no info on the Roland web site that I can find.
