Anyone have suggestions on how to optimize performance here?

I know people post stuff all the time about Nvidia, but stupid me bought a Radeon after a review (here i think.) The card is great in windows don't get me wrong, but my card is very slow in linux. I speak specifically of the Tux Racer (or something like that) in Mandrake 8.

I have tried it in kde (which I don't like) can't remember if I tried it in Blackbox.

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"Sometimes it is entirely appropriate to kill a fly with a sledge-hammer!"
-MAJ. HOLDREDGE USMC