frozen grey screen
When I turn my co.outer o. All it does is makes a noise and then the apt and the loader go for hours
MacBook, Mac OS X (10.5.7)
Resetting SMC as well as NVRAM could solve the problem.
http://macs.about.com/od/usingyourmac/qt/Mac-Stalls-On-Gray-Screen-At-Startup.ht m