I just read in our TreoCentral forums that Palm has released a patch for the Treo 800w USB and Battery Charger. Forum member aixguru found the update today. Great find aixguru!
Palm's support site states that the Treo 800w USB and battery charging software update is designed to address the following:
USB
If your device fails to detect any of the in-box USB accessories such as the power adapter, headset or sync cable, this update will resolve most of the detection issues.
Battery charging
When plugged into the charger, the device may not charge a completely discharged battery. This scenario is most likely to happen if you leave a dead battery for a few days before trying to charge it in the device.
According to Palm's support site, "This update is highly recommended for all Treo 800w devices."
You need this update if your software version is Treo800w-1.03-SPNT.
You can read more about the update and download it here.