Alex, apologies for the delayed reply.
This is most likely because your browser emulation mode is set to something other than 'BlackBerry'.
Please follow these steps and try again:
1. Open the browser app
2. Go to Menu->Options->Browser Configuration
3. Set the 'Browser Identification' setting to 'BlackBerry'
Let me know if you still have the problem.
__________________ Ashwath Akirekadu