white screen no logo at startup
When attempting a startup on my Apple iMac (intel based), I get the dreaded white screen with no apple logo. I have searched the internet for information that would resolve this issue to no avail.
I disconnected everything, including a USB devices like the keyboard and mouse. Basically anything connected to the back of the machine. I unplugged the machine, waited ten seconds (sometimes more) then plugged it back in, held down the command, option, P and R keys while attempting to start up. Waited for the startup gong (2 to 3 times) and still get the white screen.
I know there must be something I can do to get my machine back to it's natural working state...but what?
Anyone have the definitive answer?
iMac, Mac OS X (10.6.8)
