About the red and black problem: Does the AGIB allows you to choose output component (YPbPr) or RGB? I think that's the problem.

PS2 I use either component or RGB through SCART cable. Both very good, in fact the best you can get from it. I can't remember what's the name for the Japanese digital cable, very hard to come by and only compatible with selected Japanese TV. Never tried that, but I could only guess it will be equal or better than component & RGB.

I can't think of any reason for your ABIG not working right.. red and black.. naturally bring me to conclude there isn't enough green thus the component vs RGB issue.