On my MacBook I used the Boot Camp Assitant. I partitioned 20GB for XP. I put in the disc and I chose C/: and it said it had around 130,000 MB. I'm pretty sure that meant megabits. It finished installing and then it restarted. Nothing happend...just the sound and then after a while it went to a black screen and said "No bootable devices found - insert boot disc and press any key"...thats probably what it was. I realized that SP2 wasn't on the disc. Then I even tried pressing and holding OPTIONS and a mouse pointer showed up...nothing else. I booting from the OS X disc and the screen was stuck on the grey apple and the circle. I have no idea what to do. Please help me!