Paul & Nigel,

Thank you for the supplemental info and the references. The mice intruded the WK8 because it is located inside our church choir room premanently. Sometimes cleaners/house keepers, leave the window shutters open. This how the mice came into the equation. You mis-understood me!!!
I like my WK8, and because of my recommendation three musicians bough a WK8 here in San Diego.
However, a couple of months after we bought the WK8 from Boudi Jawdi, one of GEM Rep, and before the mice attack, the fade in/out button stopped to work. followed by the Dial button, and then the octave +/- stopped to transpose upward. The backup battery halted to be recharged. I kept on loosing the user styles/sounds and other user defined feature.
In addition, I reported via email a couple of problems with the May, 2000 released OS. These problems remained unsolved.
I'm not saying the GEM is a bad product, but may be my WK8 is a lemon. I will still consider buying a GEM product if I see something that I like.
Please accept my apologies if I mis-spoke. I was just stating my WK8 problems.

Regards,

Tony