Phil,

I had very similar problems when I was using an h5555 (basically the
same as yours). The problems went away and WinPilot became 100%
reliable when I re-installed the correct version of the software. If
you visit the web page you'll see you can download two versions -- for
Pocket PC 2002 and older, and for Pocket PC 2003. Make sure you install
the correct one for your operating system. I also suggest doing a
factory reset first (instructions in the manual).

If you still have problems, you prolly have a defective unit.

~ted/2NO