Hey KT,
Have you tried doing a system reset yet? That clears these little glitches up about 95% of the time. All you need to do is disconnect the negative battery terminal of your X5 for about 30-40 minutes. This will effectively "reboot" the whole system and start over from scratch.
When you reconnect the battery you should be able to use your DICE module like normal. If that doesn't work, feel free to email me and we can troubleshoot from there. [email protected] or you can get me on LiveChat in the Tech Support section of www.BavarianSoundwerks.com

-Philip