Emulator

All games won't start(black screen, no sound), unless opengl is used and dual core is disabled.
If DX9 is used it receives the following error(pasted the error message)

Critical error¶

GetProcAddress failed for D3DXCompileShader!¶

OK¶

Dolphin version with the problem (as it appears in the title bar, Ex.: "R
4779" or "R 6403M"):
Dolphin r7442
(optional) Dolphin version that does not have the problem:
Dolphin SVN R 4771

Operating system and version:
Windows 7 Home Premium
32-bit or 64-bit:
64-bit

Game ID (as it appears in game properties, Ex.: "GZ2P01" or "RSBE01"):
GD6EB2

Build command-line (not on Windows):

Was the ISO a plain dump from disc, compressed and/or scrubbed?
ISO was compressed.
Please provide any additional information below.
Problem began after updating ATI Catalyst Control Center to 11.6 and updating drivers for HD 5850. No change to problem after rolling back drivers through windows.