I left for work and left my mac on. When I returned from work there were 2 updates available. Java and security updates. I installed both restarted, the mac went through the install process then restarted again. This is when the problem begins. I got the white screen with the Apple logo and the swirling gear and it wouldn't boot. So I turned the mac off restarted it and went to Boot camp and logged on to Vista. Boot camp gives me no problems but, my mac will not read its hard drive. I tried using disk Utility and it doesn't read the hard drive, tried using safe mode but since theres no hard drive its no good. I read through some forum that my HDD my be going bad, but if it is how is it that I'm able to use boot camp with no problem. Disk Utility says there is a hard drive. I just cant repair it cause the buttons are gray'd out. Any ideas as to whats going on? or how I might be able to fix this?