MBP Powers Down When Closed

My son's 13" MBP (fall 2009) powers off every time he closes the lid. He then, of course has to turn it back on & wait for bootup. This is NOT a simple "going to sleep" issue! The MBP actually turns off!! Neither my daughter nor myself have this issue with ours (13" & 15" fall 2009)

Can ANYONE help?!!!

Have you tried Intel-based Macs: Resetting the System Management Controller (SMC) or Mac OS X 10.6 Help: Resetting PRAM ? Another suggestion I found is doing a clean install, might, somehow fix the issue.

Thanks! I'll pass that along to my son. Or get him to try next time he visits!! I really do appreciate the help.

It might somehow be an issue with the display cable. If it is pinched, it will turn off the computer.

I have a A1181 Macbook that I accidentally pinched the inverter cable during a repair and it will boot up for a second and then turn off. If I unplug the display, it will turn on fine but there won't be anything on the screen obviously.

I would take it back to apple, because there might be a short in the display cable that is happening every time he closes the display.

Thank you! I have passed your answer on to my son! I appreciate all the help!