Grey color change When i turn on my computer

Hi.
I have a strange problem When i turn on my computer. The screen is grey bit suddenly turns to otee just for a second and the Apple logo turns pink, after the screen returns grey and everythings is ok. Why happens this? Must i send my computer to repair ir not?
Thanks.

Charles Marple wrote:
Really? Does have any risk?
I do not want to mal es mistake. Thanks.
Everytime you use your computer there are risks.  Reason why you should have backups.  Do you?  Zapping the pram is easy as long as you follow the directions per the link that was given to you.  If you not want to try the troubleshooting solutions for fear of making a mistake, take the computer to an Apple store or an AASP.  Whichever is more convenient for you.  If you have Apple Care, call them and get a case number.

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