There are no new guide for Motorola equipment coming up anytime soon. The next guide will be for the Scientific Atlanta / Cisco equipment first, since those boxes still have issues with the move to I-Guide with it's first version.
If you having freezes you should get a tech out to check the signal levels and BER across the complete band of frequencies. Make sure you are not routing your coax through any AC surge protector strip coax ports.
There is confusion with both the Cisco DVR's being marked RNG200, and the latest Motorola DVR which is really a DCX3501 which is also marked a RNG200.