What exact MacBook (Pro) do you have? Is it the one with the 9400M/9600M GT combo from 2008?
Have you run all system updates? Since when does this flashing occur?
Is the Dock restarting during this procedure?
To edit your thread title to a descriptive one, to get a knowledgable audience and help making the thread easier to find for people looking for the same information, just click on the Image button on the bottom right of your original post and then click the Image button below your message.
1 - When did you buy it? Or is it a used MBP? Do you still have the box it came in or the receipt?1- i'm not sure
2-yes i run all system updates
3- since now , i forget to charge it , and the battery has become 0%
after that i charge it , and turn it on , and started do that
4- it's just do that thing !
Now i'll shut it down , and tell u whats happend
I buy it at the beginning of 20111 - When did you buy it? Or is it a used MBP? Do you still have the box it came in or the receipt?
3 - A restart is a good idea.
4 - Is the Dock disappearing act caused by you (Dock set to hide) or is it part of the symptom?
If a restart didn't fix the issue, does it also happen in another, even temporarily created, user account?
I try it now , and it's work , with much more lag , but it's work