[radeonhd] 0x95C5:0x1787:0x2000: HIS ATI HD 3450

i have an HIS ATI HD 3450 card installed with a dell s2409w monitor. i tried to boot and the screen is completely black. i can manually set the mode line to "1920x1080" and restart, but then the colors are terrible. The screen is mostly green and the HDMI audio doesn't work either. it works fine with the ATI proprietary drivers, but they don't compile with my current Xorg version. my kernel is: Linux 2.6.32.10-90.fc12.x86_64 #1 SMP Tue Mar 23 09:47:08 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux i'll attach Xorg.conf and Xorg.0.log files. thanks for any help, daniel