I have a huge problem with my iMac. You see today I was running Norton Utilities v. 8.0 as a startup disc and all ran smootly. I came to problems when I had to restart machine to OS X. My iMac just keeps starting up from the disc. I can't stop it, nor can I eject it, or physically force it out... I've tried. Everything Norton said would fix the problem hasn't. ANd when I hold down the Option key I SHOULD get a menu asking what to startup to, but I don't get that either. Heaven forbid Norton should actually do something right and beable to help me... I hope one of you can.