I had similar issues, but got it working nicely under Win7, that is to say I got the drivers and ASCOM drivers working so I could control it with Sequence Generator Pro. It hasn't skipped a beat for months now....
I could never get the little controller program that runs in Win to even successfully load without crashing....
I had a thread -
http://www.iceinspace.com.au/forum/s...light=nautilus
Hope that helps somewhat.....