MacBook Pro does not start up
My MacBook pro 2007 does not start up as it before, I press the start button and have to hold it to start then it would switch off after 10-15 secs. The fans start up and hard drive starts the motion and screen goes grey but nothing happens and just switches off.
What is the issue here? What can I try, there is a power button issue but I don't know why it keeps switching off.
Is this a good question?