I couldn't test that card in my old PC cause it couldn't boot anymore, blank screen!

I think this card don't work properly. Maybe seller tested it just on a bios screen where there's no colors. For example with this card my openfirmware looks good just because is black and white.

I'm using Morphos 3.15 and I know that on Pegasos 1 everything is possible. For example, a very nice Asus Radeon 9250 didn't work properly last year, sometimes blank screen and always with slight flickering, now like a charm and I don't know even why.