Hi I Have A Mid 2010 iMac 27inch 1TB HDD 3.2 Intel i3 4GB Ram OSX 10.6 Snow Leopard, On Sunday Night After Restarting My iMac It Kept Booting A White Screen With a Folder Icon And A "?" In The Folder, My Mouse Won't Respond Nor My Keyboard, I Have Tried Numerous Thing Like Holding The "c" Button At Start-up To Boot The Instalation Disk But That Is Now Stuck In There And Wont Boot Or Eject, I Have Also Tried Holding Shift, Alt, Command, "x", "d"------- This Is reeally frustrating for me as i am an accountant and i have loads of client files etc. on my imac plus passwords memos applications.... I Have my apple warranty intact but the journey to my apple store and i have to book an appointment =( , So I Really Hope Someone From The Community Can Help Me Out, I Would Be Really Greatful, Thanks A Million In Advance!!