I'm having an intermittent issue with my phone synchronizing with my Exchange server. Every now and then it fails, claims it's going to wipe everything and download everything from the Exchange server again. This usually causes all of my calendar items to duplicate on my Treo and the Exchange server.

Sick of this behavior, I decided to attempt to update my Treo. Previously I must have updated to a different ROM because my software says Treo650-1.13-ROW but the firmware line is blank. I've tried updating using CNG, ROW and ENA from Palm's site but all of them fail when it tries to update the ROM.

I have a feeling I need to go back to the original Cingular ROM but am unsure how to do that. Can someone point me in the right direction?