Ok, so I went to install Windows 7 on my MP 1,1. I booted the DVD id burnt, and I get an error asking me to select a CD or something. When I switched the machine off and on again I get a GRUB error, telling me it cant find a boot device argh! If I stick a Ubuntu live cd in the machine it boots that fine, however I also burnt 'rEFIt' which just hangs on a black screen with a cursor flashing. I also had what I thought was a copy of 10.6, but when I turn my machine on with it in the drive nothing happens. I totally dont know what to do now, any suggestions? Ive only got a windows keyboard for the machine so I dont know if thats no helping matters.