I've got a 95 Vision 3.3. Sometimes after driving for 1/2 hr or so with the A/C on, the volume of air coming out of the A/C vents seems to diminish and not be as cool. If I switch off the compressor and just let the fan run, I can gradually feel the normal volume of air come out again. It's as if a condensor has frozen over and is thawing out. Anyone out there ever had this problem and found out how to fix it? Thanks.