93 90sq cruise control tempermental

[Paul Dansereau <ojpdanse@mb.sympatico.ca>]

anyone have a cruise control that does this?
1) works fine for awhile then just shuts off for no reason (that i can
tell)
2) wont turn on again unitll it feels like it. I turn it iff and on
fequently and fiddle with the switch but i don't think this helps
3) it seems to do this when a car approachs ( at night) or there is a
bright light ahead of me
4) it does do this during the day but considerably less ( it seems)
 any ideas I would really apreciate, it is really annoying esp. on long
trips.

--
Paul Dansereau
93 90sq (stock as it gets)