ironically, i think you need a card that supports opengl or sdl pukes. i say ironically because your card is a real dos era one (late dos era for games anyway)

Well, yeah late DOS/win3.1 and Win95. I had a S3 Virge GX/DX, i think, in 1996 in my old Pentium Pro (P2). I ran DOSBox some number (0.60 i think).. a long time ago on that system once just to see. (it sucked btw) So I dunno what the problem is.
I run a P4 2.4ghz/256 RDRAM/ some hardrive and a GeForce 4 Ti 4200. So it might be the card but I have no clue 🤣.