It is not the hardware but the software. CGX4 has an update (4.5?) to it that is good to apply, but I've done multiple installs (wiping "clean" each time) until I got one that worked. On CGX4 use the standard defaults as they come up, but there are others that know that software better than I do. Picasso96 is my usual choice as there is a guide to screen modes and adjustments on the web to get the sync perfect. You will either find a good mode that works, or several that don't.
IMHO only.