Ok, now I'm beginning to doubt that this is even supported. I booted the 
generic kernel and it doesn't see it either, even though a 'SHOW QBUS' 
shows it sitting at the correct address. Is there some magic I'm missing?

I see on the supported hardware page that this is listed as the _only_ 
graphics adapter supported but I can tell you it is broken in 1.4.1. The 
kernel doesn't even see it.

--Chuck