@Moto
I also got one..
Does your CV64 has 4MB ? If not it probably won't be possible to get a 1024 x 768 x 24 screen. It's already hard with 4MB, above 52Hz or so, as you start to get some slight artefacts on moving objects, wich are however bearable on static screens.
Can't remember above wich frequency the artefacts become permanent (also on static images), but you do your own screen settings and find out... The CV64 is a great card for ZIII transfers, if not the best but for high resolution 24 bit screens I'm afraid 1024x768 is as much as you'll get.
