Another can't launch the game thread.

Pa.exe has stopped working.

Tried launching via steam, and via the desktop shortcut.

Updated DX everything, graphics drivers, don't have sound drivers (just a USB device driver which checks out fine, Plantronics headset).

Running what was a high-end Alienware desktop system a couple years ago, it's still solid:
Windows 7 64-bit.
Intel i7 930, 2.8GHz.
12GB RAM.
DX11.
Dual ATI Radeon HD 5700 Series, current drivers (3/28/13, updated today).

Dxdiag and a log file attached.

Any help is appreciated, I've read through a lot of posts on here trying to find a solution, and the level of involvement is encouraging to be sure.

Thanks,
Michael

Note: Installing uber-launcher now, that I found in another thread, and it's patching... will update as I get more information.

Did you use This Link to update dx9

Same problem as me, similar setup. Let's hope for a response or fix soon I guess.