Ok, I've had my M500 for a few months now but I seem to keep having problems with it freezing. Is there a limit to how many gigs of music it can handle? At first I noticed it would freeze when I tried to shuffle play my whole library - which was well over 50 gigs of music files. So I got around this by rating my music and just playing my top rated. But I kept adding my library so that my whole library is now over 70 gigs and my favorites are over 60. And now everytime I try to just play my favs I get the same problem - it freezes! I have no problem playing recently added or 90's music. Is anyone else having this same problem? Any sloutions? I wonder if the M1000 would solve it?