>> VNC is know to work, a 2nd GFX card (with Mac-OF and in PCI) should also work.

> That is good to know! [...] I assume that it must be done using the firmware prompt,
> as the card won't work in MorphOS, or MacOSX until it is flashed, is that correct?

The card won't work in firmware until it is flashed, hence Kronos' mention of "VNC" and "2nd GFX card".