Ok so I figured I would go ahead and upgrade the space on my MBP, so I bought one of those 250gb WD Passport externals. -downloaded carbon copy -copied my MBP drive to the external -opened the MBP up an swapped them Now when I boot the computer it comes up with a folder with a "?" on it and sits there. If I boot using option or whatever to select the disk it works fine and boots into OSX perfectly and everything works. But now I have to do this everytime I reboot... I have the drive named the same as the old one, Macintosh HD. I've tried repairing permissions etc. The funny thing is when I go to startup disk in the pref panel it only shows "Networked" drives and not my internal drive (note I have no other drives connected atm). My internal showed up once for a split second and now it won't show up again. Anyone have thoughts on how to set the new drive to default boot? Is there a terminal command I can use?