so I am running leopard (though I think thats irrelevant) on ym mac pro and I have an XP Home install with bootcamp. I have the X1900 graphics card which i guess was an upgrade option that I selected when buying my macpro and am running dual monitors. For some reason XP will only select one monitor as the primary one - and this happens to be the opposite of the one osx uses as the primary. I tried using the "set this as primary" checkbox in display settings in XP but it is greyed out and i googled and found that sometimes you can only change these settings in the ATI control center - which I have donwloaded and installed along with the latest drivers - but I still am unable to set the other monitor as theprimary. Any ideas?