I had the same problem.
Try flashing .62 baseband and re-install the rom.
PS
The rom is the fastest ive ever seen. But it uses too much battery rather than Ka07 rom.
So, I installed it yesterday, but for me, it's unfortunately not working at all, because:
I have no soundnotifications, doesn't matter what volume
ChompsSMS doesn't start (had that problem with diffrent roms...)
I overclocked to 1,6GHz (like the past half year) but it's extrem slowly, and I started minimum twice...
Swype lags extremly. Two words work and then I won't work for some seconds...
I hope this feedback helps a little bit. I'll return to CM7 or 9, idk yet.
Most of these time stranges issues can be resolved by a full Wipe (Factory Reset, Wipe cache and Wipe dalvik cache) and Flash Baseband 64.