I could give it a try. The problem is very heavy on my system and I have got a cuple of easy and fast to use postprocessing shaders. My eMail adress if needed can be found in my profile.

Lite-C Tut. 1 Lite-C Tut. 2 Lite-C Tut. 3 (en)
Shader Tutorial (ger)

http://www.slindev.com