Dual-Monitor with Radeon 7970 HD Graphics Card?

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http://askubuntu.com – I'm trying to setup dual 23'' dell ultrasharp monitors in 12.04 and have run into a few difficulties. I'm running a Radeon 7970 HD graphics card, and am using the latest catalyst at the moment. Unfortunately, my right monitor is the only screen which is correctly configured, and my left monitor is at an extremely low resolution (640x480) and I'm having difficulty configuring it. I've also run into this, which basically says that my graphics card is only "officially" supported with catalyst 12-1. My questions are: What does officially supported mean and should I NOT be using the latest c (HowTos)