I recently upgraded from blackberry 4.0 to 4.1. I also upgraded my verichat to 2.68b with google talk. Ever since the upgrade i have not been able to get connected with Verichat. I get "could not open tunnel failed" error. I made sure i had wap.voicestream.com APN, called Tmobile to make sure its in my account, emailed PDAapps suppot not much help from them except "tell tmobile to add wap.voicestream.com to your accnt." Also tried OTA installation!
I have the 7100t and have been a heavy user of verichat.
Is there anybody who knows if its the 4.1 upgrade from tmobile . Should i downgrade to os 4.0 to run verichat? tried uninstalling completely verichat and installing other versions but nothing seem to work! I really like OS 4.1's features
anybody with ideas??

After pulling out my hair several times; finally got verichat to work. This is what i did:
1)Uninstall the Verichat from BB
1) Settings>Advanced Options>Service Book: Find T-mobile USA WAP Transport and delete by clicking the wheel
2)Restart BB by pulling the battery out
3)Settings>Advanced Options>Host Routing Table: Click Register Now
4) installed a fresh copy of verichat 2.68b OTA!

After 1 week without Verichat i am back on again!