View Single Post
Chef_eam

 
Chef_eam's Avatar
 
Member Since: Dec 12, 2009
Location: Midland,Tx
Posts: 357
Chef_eam is a jewel in the roughChef_eam is a jewel in the rough
Mac Specs: iMac 27" 2.66GHz i5, 1TB HDD, 12GB RAM, OS X 10.7.3, iPod Classic 160GB,iPad 1 64GB Wi-fi, iPhone 4S

Chef_eam is offline
Did you install the regular ATI driver for the 4850, or the Radeon Mobility 4850 driver. The iMac requires the Mobility driver as it uses the 4850 chipset used in laptops. Installing the Mobility series driver should fix the graphics issues.

Here is the 64 bit driver
http://support.amd.com/us/gpudownloa...b_win7-64.aspx

And the 32 bit
http://support.amd.com/us/gpudownloa...b_win7-32.aspx
QUOTE Thanks