I am new on using Mac OSx. I have the following question. At first, I installed the Mac OSx 10.6.6 on a external harkdrive. I found it running too slow. Now, I want to put it back into my notobook IDE socket. I have took out the harddrive from my USB HUB and connected it into my notebook. The problem come out the computer cannot load into the desktop and hanged in the white apple logo. "still waiting for root device" I need your help, please let me know what can I do to make it boot back into the desktop. Thanks so much for any help !!!!!