Air Conditioning Problem

I have a 95' Model with 50K on the speedo. I have having a very awkward problem with my climate control system. I'll turn my a/c on and it'll cool fine for no specific period, then , all of the sudden the damn compressor will turn itself off. Then, all of the sudden the damn thing will kick back on again. It is NOT cycling on and off like it has low freon but just cutting off for a couple minutes and then back on. Some times it doesn't do it and some times it does. I hope SOMEBODY can help me!. I live in Baton Rouge, Louisiana and a Mazda dealership just started working on Subarus here and they can't find a damn thing wrong with it but i'll burn up for 3 or 4 minutes and then all of the sudden the damn things starts cooling again. The blowere never stop though. Sometime when I turn the a'c on it'll take a while for the blower to turn itself on though.