My know is not broken but loose, I got the unit second hand so I'm out of luck, if anybody knows what part should work as a replacement it would be incredibly useful so I can do the repair myself (maybe).

My knob is broken, or loose (however you want to describe it). It feels like it is completely detached from its original position. It pretty much does nothing if you twist it, but if you wiggle it around, sometimes it does random things (like goes to the set list screen, changes presets, etc.). I don't have enough money to go get it repaired, and it is already out of warranty. Could I fix it by uncrewing the four screws around the screen, and reattaching the knob from the inside?

heyy my friend , please tell me if you repaired your pod , and tell me how you've done it, because i'm facing the same problem as yours :S....