Sorry. I'm a bit off today... newer you say... Sometimes, the newer models don't yet have a specific driver. So, pick the driver closest to what you have (may be generic).
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I thought these might help you:
This gives you a step-by-step explanation of a graphic install of Mandriva Spring.
If you go to page two, you will see an example of selecting a generic monitor.
Mandriva Release Notes (Wiki) is
here.
You can also look at supported hardware lists. I believe there is one on the forums.