The only thing(s) that I could think of is that it
A) Works with some (probably the newer) models but they didn't do any testing to see if the system was backwards compatible. (Which could be due to hardware or software issues?)
B) The 3.2.2 install they tried was a clean install/image and we're missing something in the service pack.
There's always option C) Legally blind. But I'm just hoping that's not the case here.