So, I had a previous error that wouldn't allow me to upgrade the firmware on my computer, and now I have this error. Whenever I try to switch to my Windows 7 portion of my computer via bootcamp, it says "You cant change the startup disk to the selected disk. The bless tool was unable to set the current boot disk." I have verified my harddrives, and restarted many times, and still it doesn't work. Whenever I run the bootcamp assistant, it responds with "This Mac Does not Support Bootcamp". This is all of a sudden after I install a new Graphics card, and upgrade my firmware. If it helps, this is my previous thread that got everything working on the mac-side of things -- http://forums.macrumors.com/showthread.php?t=1862507. I need my computer to be working by Monday, so I will be working on this problem all day today (Sunday). Please help, and thank you!