ati 4870 driver problem on fedora17 running on a mid 2009 macpro quadcore

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http://forums.fedoraforum.org – Hi, yesterday i took the plunge and installed linux(fedora 17) on my mac pro so its all still very new to me. It went remarkably well till I decided to try and update the ati drivers . I have an ati radeon hd4870 was hoping to get opengl3.0 support by upgrading my drivers. I noticed ati had a new set of drivers on thier site (amd-driver-installer-12.6-legacy-x86.x86_64.run). So i installed them using terminal and then rebooted, the desktop changed notably and an error popped up about gnome3 not being able to run on my current graphic card. I tried installing again and this time checked t (HowTos)