12 Replies Latest reply: Nov 17, 2012 9:40 AM by Pondini
BD0910 Level 1 Level 1 (0 points)

Hi,

 

I have the old MacBook Pro. Upgraded to Mountain Lion which completely wrecked the system. So downgraded to Snow Leopard.

Then updated the combo update. Now stuck on blue screen at start-up.

Need help. Greatly appreciated. Thank you.