White Monitor after starting MBP 13"

Hi!
Today I started my MBP and after the monitors gets white nothing else happend. After some time, about 1 minute,  I shut down the MBP, and after restarting it, the MBP boots normally, so the white monitor contiued with the "watch", then booting.
After some minutes I turned off the computer,again, and then restarted it. Again, white monitor, nothing else happend. This procedure I repeated 3 times...
Can Someone help me?
Sincerely yours,
Alexander

Try  resettin the Ram and PRAM
http://support.apple.com/kb/ht1379
also the PMU
http://support.apple.com/kb/HT1431

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