I don't think I posted this correctly - but new updates have come out since I first posted the issue I was having with my MacBook Pro i7 2.66 (15-inch). Since I was told by another Certified Apple repair shop to not use the Graphics Switching until the problem is resolved I have not had any issue's. My Graphic Switching Options has not been checked and I've been using nothing but the NVidia since I've owned the laptop. Since there have been a few updates in Lion and I even found on the apple site a video update for my model Macbook Pro I decided to Check Graphic Switching and give it a shot.
-Current Config: Mac OS X 10.7.4 - i7 2.66Ghz 8GiG Ram - 240gb Intel SSD
-Checked Graphic Switching
-Unplugged Magsafe - so laptop is on just battery
-Restarted the MBP
-Booted up to the Login Screen - I clicked on my user account and typed in my password and DID NOT PRESS ENTER YET...
-After I entered the PW I waited about 5 seconds because this is when it use to either Panic or endless pinwheel on me.
-After 5-10seconds it went into the pinwheel and that was that. 😟
-I rebooted again and logged in right away and then I got a Panic Error that was sent to apple and so on.
-Plugged it back in and rebooted and I was back using the NVidia card and it's no longer locking up.
-I never used this on Snow Leopard so I don't know how it ran on that...but I'm thinking it might be a hardware issue at this point.
--Is anyone else who has had this same issue with the same model Macbook Pro (6,2) resolved???
--Final Note- I did purchase the extended Apple Care, so I may end up finally making an appointment with them so that if it is hardware it gets repaired or replaced before my AC runs out.