I want Windows to see more than 2 Gig of my 12 Gig of memory on my 1,1 2006 Mac Pro. I'm not sure if it's possible though. I'm currently running Windows Vista 32bit. I think I read somewhere that you can't run Vista 64 bit or Windows 7 on a 1,1 mac pro - which you have to do to see more than 2 Gig of memory. Is this the case? Is anyone running Windows 7 64 bit under bootcamp on a 1,1 mac pro (and seeing all the memory in the computer)? I can't get an answer on the Windows Forum so I thought I'd try here as I think it's a 1,1 Mac Pro issue.