T61 - Speaker issue?

[Kryptonic]

Hi guys,

ive noticed some odd behaviour on my T61.... when im on an uneven surface, say, sat in bed, and im watching a movie and i get get someone talking loud or something like that i get some awful vibration come from the right speaker! (the kind of noise you get if u have your telly too loud and it vibrates on the housing)

cud my speaker be loose? how wud i take it to bits to check?

cheers guys,
Will