HT3964 i forced quit lots of applications now my mac wont start up

I HAVE A WHITE SCREEN WITH APPLE LOGO AND A WHIRING CURSOR

Hi M,
First, hold down the power button for 5-10 seconds to completely shut it down. Then try starting in Safe Mode:
http://support.apple.com/kb/HT1455
http://support.apple.com/kb/HT1564
After the Mac is completely shut down, push the power button and immediately after the startup tone, hold down the Shift key. The Shift key should be held as soon as possible after the startup tone but not before.
Release the Shift key when you see the gray Apple icon and the progress indicator (looks like a spinning gear).
There should be a message that says "Safe Boot." After the Mac is completely booted, try restarting and see if the issue is gone.

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    Message was edited by: LarryHN
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