S!
Stupot, just use the nVidia if you do not want to fiddle with IL-2. For now that is. When the drivers are updated some time in future, take a new look
I will for sure post here when these drivers come out officially as I am waiting for them a lot!
Using the atioglxx.dll. It did not require any fiddling at my end. I just took the file, size about 12Mb, and dropped it into IL-2 folder and voilá..game had no blocky text! Do not use Catalyst AI either as it is not really working with IL-2. The best dll-files released by MG are ones dated 13.3.2008 with the newer Cats.