Zymurgy wrote:

Quality CRT's can go up to 85MHz refresh rate, I have no discernable
flicker on mine.

85MHz - now that I would have to see ;-) With a vertical resolution of
say 1200 lines that would need a line rate in excess of 102GHz! Might
have some interesting X-Ray emmision problems as well!

A top end CRT will do say 150Hz vertical refresh... with a line rate of
no more than a few hundred KHz

A good proportion of people will see no flicker at a vertical refresh of
72Hz or better on a small ish screen, most are happy by 85Hz or more
on screens upto 21"

(bigger screens are more of a problem because you see more of them in
your peripheral vision which is far more sensitve to movement (and hence
flicker) than your main field of view)


--
Cheers,

John.

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