I've had the iD100 since the end of September and have had nothing but problems. The major issue is it will not dock with the iPhone 4 or iPod Classic (160gb) reliably. In fact, I estimate a connect success rate of less than 20%, two tries out of 10...maybe if I'm lucky. Constant fiddling and shifting to try and make connection. It will not connect to my IPad 3 whatsoever. I called Audio Advisor and they referred me to the CA authorized repair agent only, they want no part of it. It is now with CA's repair facility in Canada awaiting a determination as to the trouble. The Apple connector is weak and I suspect a mechanical problem or loose internal connection. Of course, if it does not connect you can not determine the firmware version..."catch 22" if you are trying to determine the problem with an iPad. I would suggest not docking the iPad, it is too large, heavy and awkward for this dock. CableJive makes a strait through male/female cable and I suggest using it to prevent connector damage from repeated dockings. This cable works 100% with the Pure i20 and will most likely with the iD100 when they return the repaired (optimistic?) unit. Although nicely built, this does no good if it does not work. An expensive item compared to the i20 and at this point not recommended.
Sorry to hear that you have facing problem with the ID100 , I did not face any issue with ID100 with my iPod Classic (160gb) , they connect well , and USB connection with PC allow me to syn. the iTunes to iPod directly while docking.
I reckon it must be a faulty unit that you have. I will suggest you send back for replacement.