Okay, the only replicable problem I've seen so far is the Xbox version being V1.1+, instead of the real V1.0. I haven't checked the Chip ID yet, but I will later. DVD dongle on port 4 is okay, I've had mine on port 4 ever since.
If you don't see your Drive G, enable it from the settings and you should see it immediately after you save it. It's disabled by default.
As for the communicator issue, sorry I can't test it yet. I don't have one but I'll try to get one.
As for the freezing on bootup, if you don't see the Xbox logo fade, the dash ain't loaded yet, thus, is out of my hand already. I have experienced this as well, but using UnleashX or Evox seems to not matter, it just happens. Right now, I'm leaning towards BIOS issue but I really can't say for sure.
It would help a lot if you tell me your setup: What BIOS are you using? Are you using it as an app or dashboard? Please provide as much info as you can, and if necessary, post your config.xml (edit it, I just need the settings section).