Schmoodles1987

Hi All, I have a stock standard 2009 Aurion AT-X.. (it has the basic aircon controls.. no dual climate control or anything) Anyhow just yesterday the it decided to go crazy......the 2 drivers air vents blow cold air and the 2 passenger side air vents blow normal air. All air vents blow at the same pressure, except 2 of them don't get cold... what would be causing this? cheers