Do another (wireless) Enterprise Activation.
If the EA fails, you need to call Orange and confirm that they have enabled Corporate BlackBerry data services.
Another test - are there any Orange BB users in your office whose BES devices DO work? If so, put your SIM into their BB. If their BB stops sending mail, then you KNOW the problem is the data plan on your SIM.
: Groupware Infrastructure Architect, Denver CO If I'm not here, I'm playing World's End on FaceBook. Mob/Mafia Wars are SOO last year