Hello,

> That ROM label is found on the Apple OEM Ultimate Rez card.
Then it is one. Although the name 'Ultimate Rez' is nowhere to be found on the board.
 
> >>  The Ult. Rez. card has problems in the lower (PPB) slots under Mac
> >>  OS.  However, I've found this to be a driver issue.
> >  Yep, I can confirm this. The MacOS driver hangs occasionally if the card is
> >  behind the PCI bridge. ( and it hangs reproducable when you try to change
> >  resolution )
> 
> If you disable the extension (driver) which provides acceleration the 
> resolution change freeze goes away.   Of course, the card is 
> considerably slower without that driver loaded.
Yep, 'considerably slower' is a nice euphemism...

The other problems I described seem to be issues with the -current kernel, 1.6.1 seems to be stable.

have fun
Michael