I'm experiencing a very odd and blocking problem: was mining with CGMINER 3.1.0 on Radeon HD 5750, never had problem, with SHA256 nor Scrypt, all was fine.
At some point I tried CGMINER 3.2.0 and it crashed at start (could only see one line "Started CGMINER 3.2.0" and then crashed).
The odd thing is that from that point over even all other versions of CGMINER do the same!!! I cannot anymore use CGMINER! I've tried with 3.1.1 (that I'm succesfully using on another PC): crash. 3.1.0 that was working well before: crash. Today I tried even 3.2.1: crash.
I did a Dr. Mingw debug for you, hoping to understand what the hell is happening.