Disappearing menu

Apologies if this has already been asked and answered but I couldn’t see anything on the forum. I have a Fuze which has lain unused for a while and I now want to use. Download updater and firmware have (I think) been downloaded OK. The problem is with the menu scrolling function - any movement of the wheel turns the screen blank; after a few seconds it comes on again at (roughly) where I was hoping to get to, but it makes navigation a trial and error operation and extremely cumbersome. Any ideas?

After sitting so long, it might have gotten some dust or schmutz under the scroll wheel, hindering the electrical connection. You might trying blowing some canned compressed air (available at Office Max, Staples, Radio Shack, etc. for cleaning computer keyboards) or electrical contact cleaner (available at Radio Shack) under the scroll wheel.