HP has released a new ROM for the iPAQ rx1950 and rx1955. The ROM updates the Microsoft Adaptation Kit Update from 1.0.1 to version 1.0.2.
Back up all your data before doing the upgrade: This update utility is designed to replace the current ROM image and erase the partnership and all user data and programs on the handheld. You will also need ActiveSync 4.1.
Source: Pocket PC Thoughts