I just upgraded my phone from Nokia 3220 to Blackberry Pearl from T mobile. I've already downloaded YM to my Blackberry but cannot get connection. It says " service not enabled for this handheld" . I've called the T Mobile technical support but I don't think I got the right answer as he wasn't sure of of what he's saying. I can use my YM to my Nokia 3220. Do I need to subscribe optional service like the Blackberry add on for me to access YM and email?