Boo: If you're still playing a Yammie, here is a post with a few insights into what happens when the buttons get stuck below the shell:
http://www.synthzone.com/ubbs/Forum37/HTML/014016.html

Had it happen on my T2 a long time ago - fixed it myself (it was scary) but the problem has not recurred (knock on wood!)...

Best of luck!

Randy
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Randy

PA4X, SX900 (Baby Genos), Roland U-20, L1 Compact, Way 2 Many Saxes

"My computer beats me routinely at chess - but it's NO MATCH for me at kick boxing!"