Another update
tried both executables on my ZZ9000/A3660 (no FPU though) equipped A4000, both versions crash almost immediately (suspend/reboot) .
RIVA works fine, but is a bit choppy.
FPU is required to play this game.
Ah, no probs I suspected as much.
Perhaps it's worthwhile looking for an FPU then and gracefully quit if one is not present, not allowing the binary to crash the entire system?
Actually not a bad idea.
