A/C sometimes won't start?

[SirDigby]

first off. NEVER USE A/C PRO or any other cheap ass store product. next, you Toyota dealership sucks, and is full of retards. checking the computer for codes is nice if there is a problem with electronics, but what those morons need to do is hook the vehicle up to a set of gauges and watch your performance. I bet you have a slightly low charge and the pressure is dropping low enough to kick the safety switch on the system. same with the problem of running hot at a stop sign. when the engine turns faster, the compressor builds pressure and system resumes operation...