My MacBook ran fine using 10.4.10, no problems. Then I used Software Update to download and install new software, including the update to 10.4.11, iTunes 7.5, new iDVD, and one other item, can't remember. I left and when I came back, the screen just showed an empty desktop, and I had power down manually. Now, whenever I try to boot up, I get the light gray screen with the apple logo, the spinning circle with spokes, and that's it. Even after twenty minutes, it doesn't change. I've tried rebooting in safe mode, and using a Panther CD startup disk while holding down the C key. Neither do anything, and now the CD is stuck in the drive. All I can do is manually power it down. What should I do now?
MacBook,
Mac OS X (10.4.11)