Usually when the phone freezes on connecting it means that the mobile app is asking for your acceptance to connect to the internet. But if you say it used to work I really have no idea. Have you changed some setting on the phone perhaps?
Blackberry curve 8520
Yes i've installed new "facebook app" and "blackberry app word"...
I accept the connection but it freeze after...maybe i will uninstal the new apps...
And your have set your APN settings corrrect? See this thread.
http://www.chess.com/forum/view/help-support/mobile-chess-on-bb-curve
I have BB Curve 8520 too and after enabling APN i have same problem remains.. please someone help...
Unfortunately we don't support blackberry anymore.
We have also now withdrawn the app from AppWorld
You'd need to install our regular mobile app:
http://www.chess.com/play/mobile-chess.html
or
http://chess.com/mobile/bin/www.chess.com/Chess.com.jad
Sorry :(

Hello Everybody,
My chess.com app use to work with my blackberry but know it doesn't work and freeze on "connecting..;" and nothing matter :(
Does anyone know what's the problem ? The 2.6 version used to work yesterday..
Thanks for your answers :)