Well, apparently the card does not work. I've tested it in my pc without trouble, but no results on my Peg1 yet. The previous owner of my Peg had the board working, so I'm thinking that either the Hercules card does not work with the Pegasos, or (I hope not) that the board is damaged.
What more options could there be? In my pc I have a GeForce Ti4200, which (I think) will not work. I also have an old pc lying around with a pretty sucky gfx card, but it doesn't fit in the case (I need a low profile card, with this fullsize card the VGA-out hits the case before it slides in the AGP slot).
Any help?