Stick with the 43.xx series, the 44's are being optimized for the FX, you may actually lose a little perf on your GF4 moving to them.
When nVidia was optimizing the det's for the GF4, they broke the GF3 a little and the same may happen here.
Yeah, stay with the 43.45 I have a Gf4 Ti-4200, and the new 44.xx drivers lowered my 3D mark score by about 100 points!, so of course I went back to the 43.45.
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