Upgrade the drivers

At the moment, I have the Omega equivalent to the Catalyst 4.6s and i've had these for awhile.

I have mainly noticed in IL2 that I seem to get massive artefacts when it is drawing small scenery (mainly buildings etc) and they appear all over the screen, but once it's drawn, it's fine. While it is having a "disco" it doesn't slow the gameplay down at all and it's still playable, just looks a bit funny.

This is even worse in Pacific Fighters because of the amount of small stuff that needs to be drawn. Now, I've been hearing that the newer drivers just cause a "slideshow" in Pacific Fighters because of drawing all the objects. Also, the newer drivers supposedly perform better in games like D3, Far Cry, Ut04 etc.

So, i'm wondering whether to upgrade, anyone offer some advice?