Since I got a new screen for my iMac, I cannot see any red in iWeb.
Even if I put the RED slider to the max, and the other two to the left, all I get is ORANGE.
Usually I'd say there is a calibration problem.
But Photoshop and all other photo apps seem to be OK.
Could there be a problem with iWeb.
(If you are not color dependent you might not believe that such a thing can drive you nuts. Believe me: it can)