You got a point here, i noticed it 2.
But I think it's rather in the driver's than in hardware, cuz the remote thats ships with the 8500 DV (of wich i am a proud owner :P) is an exact replica of the Remote Wonder (or visa-versa).
Since the release of the Remote wonder the driver version went from 1.0 to 1.1 and this might well be the "problem", and though I havent test this yet I have the feeling this might be the thing.