Does anyone face the same issue like me? After installing 10.7.2 randomly my MBP freezes when switching apps that might force the OS to switch graphic cards. For example if I run safari and then photoshop sometimes my mac freezes. I noticed that when I disable graphic switching everything works fine. I didn't have this issue on 10.7.1 I have a MacBook Pro 2011 17 inch. I am really wondering if this is the GM.