I've been using my Zaurus for several months now, and recently I noticed that address book entries have been disappearing. I'm certain I haven't been deleting them by accident, but it almost seems like that's what's happening. What's strange is that they're disappearing from both the Zaurus and the PC that connects to them. I have an old PC that I used to sync with, and it's version of Qtopia still shows more than a dozen records that are now missing from my Zaurus and new PC.
I am using a ZL-5600 and synching with Qtopia. The PC is running WinXP pro. I frequently switch the CF slot between a wireless card and a 256MB CF card (but only with the power off).
I have no idea what ROM version I'm running, or how to find out.