My air conditioning woes continue... I just had my system charged, but now it blows cold only intermittently. Usually, the air blows tepidly until the car warms up, then (maybe, maybe not) will blow cold for a little while, then return to warm. On a really hot day (I live in Florida) the air will actually blow hot, as if the heat was on. Because it infrequently will blow cold, I'm thinking that it might be some sort of ATC computer/electronic problem. Any ideas? Thanks.