Problem solved.
Adobe says for CS5.. "If you must use more than one card, two of the same are recommended or.... "
Two 5970 cards.. one just to run a tv was crazy overkill.. it's overkill for just one of these cards..
Some research reveals the major compatibility issues with video cards are type of memory (ddr2 vs. ddr3), shader specs, Open GL version, and some other smaller things.
I visited my local Bangkok computer store and went home with the 6 single slot, passively cooled, native HDMI, 7.1 channel, cards they had.. 4350-4670 cards..
A 4550 card had all the matching specs.. and it worked.. mission solved. I'll return the other cards tomorrow.
It's interesting to note that only Adobe products had issues with the original cards.. and besides for FastPictureViewer it was the only program suite I know uses the OpenGL or more than the standard graphics features.
Maybe this is an issue we just have to deal with..