I have held up on updating my drivers due to this for a long time. In fact, i think i have the 9.11 version from the boxed DVD that came with my GPU since last Xmas, when my 4870 got fried and i replaced it with a 4890 (hurray for MSI 3 year warranty

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I have also seen on the Spits vs 109s forum that succesive driver versions sometimes break things that previous ones fixed. The general consensus there seems to be that 10.6 is problematic, 10.7 is good and 10.5 is the best overall for IL2.
I have downloaded versions 10.5 and 10.7 but haven't installed them yet. So my questions is, keeping in mind that i don't necessarily need the latest driver no matter what, which one should i install? I'm leaning on 10.5 to be honest.