Some weeks ago when the 2009 Mac Pros came out, a number of people came forward with problems they were having with their new macs. We had: (1) a fan noise problem; (2) video woes, especially upon waking from sleep; (3) ATI drivers that were maybe less than they could have been. Feel free to remind me of any problems I am now forgetting. I would like to know whether installing 10.5.7 on your 2009 Mac Pro solved any problems or otherwise improved your computer. If anyone knows whether the video drivers in 10.5.7 are new or recycled, that would be helpful. If you haven't had any problems, and if 10.5.7 hasn't introduced any problems, that would also be helpful to know. Thanks.