HP has posted on its support web site a small system software update for the iPAQ rx1950.
According to HP, this makes only a single change: It updates the Pocket PC from Microsoft Adaptation Kit Update 1.0.1 to Microsoft Adaptation Kit Update 1.0.2.
What’s a ROM Update?
The ROM is where the operating system and built-in applications are stored. Changes made to the files in ROM are permanent and will survive the device undergoing a hard reset.
Updating the ROM will erase everything that’s on the handheld, including the contents of the File Store.
Thanks to Pocket PC Thoughts for the tip.