10 Replies Latest reply: Apr 24, 2013 2:23 PM by Malcolm J. Rayfield
Nick Williams1 Level 1 (5 points)

Hi All.


I have a MacPro quad core xeon 2.4 running 10.8.2. This is where it starts to get weird, I was running Snow Leopard on it and I had added a 3rd monitor by adding a 2nd radeon hd5770. All was good. The comp had a major meltdown after a year or so, I couldn't even get it to start from the DVD. A geek I know rescued it by instaling mountain lion but now it says that snow leopard won't run on it. My main question is about the 2nd video card which will not come to life  under ML. Looking into the system profiler I see 'aty hoolockparent' and it says that no driver is installed. I've googled for a driver and run software update all to no avail. Any ideas?