My Sprint HTC EVO has the latest HTC Sotware 1.47.651.1. The firmware is 2.1 - update 1. The Rackspace Hosted Exchange acocunt works fine and syncs up with a Palm Pre. Once the Sprint HTC EVO is configured for the same Rackspace Hosted Exchange account, the email and contacts sync fine. The Calendar will not sync and an error will appear "can not connect to server".