Thanks Lon..
With an LCD screen refresh rates are not critical since there is no descernable flicker. With CRTs (like the SONYs) however, it is really important. Anything less than 75hz is undesirable due to flicker.
Rgds BEX.
P.S. Where's me old colleague Traffic? He's usual good for an opinion (sometimes useful, always thought provoking) about anything. I kinda miss him.
BEX