I have the Matrix Infinity Homebrew and it was working fine till I changed my TV to an LCD.

Now I can play both original NTSC and PAL games fine but my backups are playing black and white. If I plug it back into my old tv then they are in colour.
I have tried both the original S-video cables and through a SCART cable to no avail.

The TV is PAL and NTSC compatible and the PS2 is of NTSC origin.

Has anyone met this and if so is there a fix?