Second Sight refresh rates?

[spec@vax2.concordia.ca (Mitchell Spector)]

    I've been a bit curious lately, thinking about the Second Sight 
and what refresh rates (vertical scanning frequencies) it supports.
Perhaps someone here who owns one could answer that question. Does
it support rates above 60 Hz for graphics or text mode, and if so, 
what are they? (65, 70, 75 or maybe even 85 Hz?). I would hope the 
card does at _minimum_ 75 Hz in graphics and 70 Hz for text. :)

    Also, if it does support higher refresh rates, does the card
set the rates automatically for you or is there a special utility
program supplied for adjusting that manually? 

Mitchell Spector
spec@vax2.concordia.ca