palmOne has released a ROM update for the Verizon Wireless version of the Treo 600. According to the palmOne web site the update includes the following:

Fixes an issue with MMS (MultiMedia Messaging) in which MMS does not appear to work

Adds longer DTMF (TouchTone) tones as an option for those who need them

Provides better handling of incoming calls when roaming

Fixes an issue in which SMS messages to or from certain short numbers (such as SMS voting) resulted in duplicates or resets

Updates the Software version number to Treo600-1.11-VZW This update is for the Verizon version of the Treo 600 ONLY! You can get the update at the link below.