How's the sound? Have the nasty thumping sounds you described all gone now? I hope so. btw I checked my screws again and everything was still tight. Next time I take my player apart I think I'll put some Loctite on them anyway just to be sure. I'd be inclined to check the small squares of tape after some use as the adhesive might get a bit soft with the heat. You don't want them falling off. Anyway, I'm pleased you found the culprit.
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Marcus
32 gig MKII (various colours) & 30gig MKIIa