Happens to me also. in addition, I should say that in my opinion the touch sensitivity is now really worse than with the latest OS2007: I frequenty get some key pressed that I didn't want to, and this didn't happen with the old OS.

This is the worst thing about the new OS which after all is a big improvement over OS2007, but becomes less usable than the old (guys, life isn't just a matter of speed and good-looking, learn the Palm lesson)