I went through a testing hell to find out, which driver to use...
Mainly play SH4 and had a strange issue with double-screen at hydrophone station.
After loads of tests - and a fresh Win7 install - I concluded drivers above Catalyst 10.9 caused this double-image.
To date this is still an issue, so I'm sticking with 10.9.
Tests showed, that the fastest driver is 11.4, but 10.9 is only marginally "slower".
Description of drivers woes:
http://www.techpowerup.com/forums/sh....php?p=2177158
Settings in Catalyst Control Center:
AA 16x box
AF 16x
A.I. standard
MM HQ
V-sync on
AA Mode SSAA
OGL Triple buffer set
Re. the Black Screen Bug: try upping AA to full 16x (or 8x on a 5570?).