How to get updated Comcast channel lineup?

Comcast recently changed their channel lineup (the number of the channels, not which channels I have access to) and GraceNote does not seem to realize this has happened. What can be done to get this corrected? I’m using Comcast in West Lafayette (47906). You can see this manifest itself through GraceNote’s Zap2It service here:

They renamed some channels. completely renumbered most things above channel 1000, and it’s next to impossible to remap everything 1:1.

Help!
Thank you!
Corey

I’m having the same problem with Comcast as my provider.

Did you rescan your channels after they did this.