When I have my a/c on while idling it doesn't sound like the compressor ever kicks on and cold air doesn't come out....when the car is under load or revved to about 2500 the compressor kicks on and it blows ice cubes....could this be signs of a bad compressor?

BTW I just had the system charged and every once in a while, what looked like fog, came out of the vents for like a minute and then it would stop...HELP!

 

there is nothing wrong with your air conditioning that is normal on honda cars to do that they need the rpm's to make the compressor spin faster and then the ac will get cold ... ask any honda owner and they will tell you the same ... now with toyotas they get cold no matter wht ... on my tacoma i would let it idle for 5 minutes and when i got in the car it would be freezing ... but that was a toyota just dont worry about the air .... it is normal