cgminer just crashes under 13.4 - I've wiped and reinstalled Windows a couple of times trying this. 12.10 is the same.  13.2 is the same.  12.8 is the only one I can (could) get to run reliably.

With anything but 12.8 cgminer craps out on initial start (about then it builds the .bin files).

I must be missing something - I'm running a fresh 7x64 install, Windows updated, ATI drivers, cgminer.  Nothing else.  

Board is an Asus P8B WS (C206 chipset), i5-3350P@defualt speed, 12GB DDR3-1600 RAM, Asus HD7850, Gigabyte HD7950, Sapphire HD6970.

These three cards worked OK on a SABERTOOTH 990FX with a FX8320@4.4GHz, but I changed to bring power consumption down (the AMD chip and board were using ~100W more at the wall than the Intel setup).

If I can't get this working I think I'll have to go back to the AMD.  But I want to see if there's something strange with cgminer, and maybe help bug hunt before I nuke this install?