Hi all. I'm in possession of a mac pro 2x 2.8ghz intel quad core running leopard. I have a main hardrive and a secondary harddrive. I was attempting to reformat the first hd and reinstall leopard. I pop in the cd as I have with many other systems, click the install startup and reboot, after about 4 minutes of waiting I see the black screen drop and it asks me to restart my comp, presumably a kernel panic error. I've done this with two different hd's to rule out it being an hd problem. I've also procured a friend's copy of leopard and the same problem occurs. The system was acquired from a local business that closed recently and sold off it's stuff which is how I came into possession of the system. It has no 3d party hardware that I can see. I find myself wondering if it is a problem with the motherboard and since the system used to be for business purposes perhaps there is some sort of block or lockout on the mobo that's preventing an installation. Any help would be much appreciated. You can find my other posting on another forum here : http://www.mac-forums.com/forums/app...tml#post871660 and maybe you guys can pickup on something they haven't. Thanks.