Ok, here's what happened. I tried installing Windows XP on to my MacBook running Leopard last November using an XP installment disk that came with a Dell Desktop. So that worked out well, until Boot Camp told me to print out an instruction sheet. Well, I don't have a printer connected to my MacBook, so I continued the installation without it. Bad idea. The installation apparently 'finished' so I clicked "finish" but the whole installation process went back to the beginning, so I had to force quit the installation (my MacBook was running from just the disk, not 'Macintosh HD'). By the way, I went through the installation process a couple of times before I thought "this is just keep on repeating." Well, whenever I go to boot up my MacBook now, a message comes up in a black background with white writing saying "No bootable disk, press any key to continue." Pressing any key doesn't work, so I have to hold down the power button (which I hate doing since it's apparently bad for the HDD) to turn it off, and I now have to hold down the alt/option key whenever I start up my Mac. By the way, the only disk that comes up is 'Macintosh HD', not the 'Windows HD' I partitioned earlier, which I have now deleted. My question is, what else can I do to completely erase this message I get at the start up? Thanks in advance.