OK. Tried damping at both ends and it makes no difference. Different headphones are the same. It happens open and fretted but mostly on the lower ends of the E and A. I do like a bit of rattle but it's not fret buzz.
It's definitely the bass cos you (I) can hear it here in a recording I made straight into my PC. But not as clearly as my amp (or little mixer).
Beginning to wonder if I am obsessing,
Apologies for the rubbish playing. Just some notes mainly on the low end of the E, A and D to show the effect. You will need headphones.
[media]http://dl.dropbox.com/u/133297/Meeow.mp3[/media]