Well it only gave me a pump error that one time. Every other time the upgrade has been applied just fine....no errors. I just put a new cable in from Eutronix and it's a segate 100g drive which has had no problems as well as the mp3 files that lock it up are the same over and over again....so I don't think it's a hardware issue just yet. Again when I switched back to 3.0 it works fine....for some reason it didn't want me to downgrade! In Hijack is the menu item the "Kill/pause player" option? it still reboots the player instead of skipping to the next track but I guess it beats a hard reboot. If anyone can figure out why I couldn't downgrade that would be awesome! Also...anyone have any extra memory chips? I was thinking of upgrading. Thanks guys.....you're the magic!