Supported Network cards will depand on what hardware and OS you have for example the RTL8139 is supported by the Mediator and OS3.x but not OS4.x, the latter only supports RTL8029 based PCI cards.
So the best thing is to let us know what your setup is.
Steve.
Edit:
Oh I see you don't have a Big Box Amiga - in that case I suggest you check out the compatibility listings of the PCI Busboard's
I.e:
http://www.elbox.com/mediator_driver_guide.htmlhttp://grex.amigaworld.de/index.php?lang=en&page=37I couldn't find the list for the Prometheus, but I'm sure with a bit of Googling you'll find it!
