MacBook Pro: light blue screen while closing programs

Does anyone experience a light blue screen flash while logging in also? It might be connected.

Blue screen during startup and shut down is normal. After login, you shouldn't have any blue screen. If your startup blue screen is long, do a safe mode startup (hold shift key, press power button, keep holding **** key until you see progress bar and release it). After login, do a restart and your startup cache will be rebuilt. Doing this every so often when you're getting a lot of updates will prevent a blue screen hang during an update installation.

No its just a flash of a blue screen while logging in.

I would not worry about it as long as you get to your decktop. You could rebuild your startup cache and reset your pram (press Option, Command, p. r and power key all at same time during startup until 2 peeps); clean your java data in utilities, java; empty your flash data in system preferences and see what happens. I've had no blue screen on quiting Fiirefox since the Thunder Bolt Software Update 1.1 and doing all these resets.

Is there a way to reset the firmware?

Firmware is not resetable.

On your blue screen flash after login. I saw a discussion on it yesterday after I responded to your question. It is normal and occurrs because your display preferences are starting. Prior to login, the display uses factory settings and after it uses yours. You would see a change in the blue screen prior to your desktop appearing even if you had automatic login. This is the same thing as if you changed your display resolution in system prefences which causes a momentary blue screen. If some of your software changes your screen resolution for a game, you will get a momentary blue screen on startup and quiting. This blue screen flash may be computer model specific.

You have not said if you are still getting the blue screen after quiting applicatiions? No one else has reported it since the last thunder bolt software update 1.1.

So this thread as comfirmed my panic about the random blue screen. I just got a new early 2011 MacBook Pro and today after doing the all the updates (except moving over to lion) i have recieved the blue screen twice under random situations. Is there anything you could recommend. I can not seem to replicate the situtation so perhaps it was just a mishap. Being a new mac owner (coming from high end gaming machines), I don't want this to drive me away. ( I had enough of a panic scare when I heard the motherboard beep after a firmware update just to find out it was normal.)

Ok, so assuming miles did in fact update ALL software this might mean the thunderbolt 1.1 doesnt totally fix it. Did anyone in this discussion happen to downgrade from lion to snow leopard?

Awesome, just fixed the blue screen on login. In System Preferences click on displays, then color and select the other "Color LCD". Could this change also stop the blue screen while switching graphics cards (our current problem)?

By the way do you know the difference between the two "Color LCD"'s?

Read this article http://reviews.cnet.com/8301-13727_7-20123839-263/troubleshooting-case-fixing-a- blue-screen-issue-in-os-x/

After installing the Thunderbolt 1.1 update I turned graphics switching back on and then tried quitting Final Cut Express with another application running (i.e. actively doing something, in this case I had Thunderbird compacting my mail folders.) Previously this action would reliably produce the blue screen effect. Now it doesn't, so I think the update might have fixed the problem.

NB I have not reset the PRAM or start up cache.

I have not ran into the error again. So i am assuming that the issues has been fixed at this point. I'm gonna try again later today to see if i can replicate the situation, like I said before i am hoping that this was a fluke..

I've waited a couple of days to post since updating with the Thunder Bolt Software Update 1.1, but so far I have not had an incidence of the blue screen freeze... Previously I could tend to reproduce a freeze in less than an hour, but I've gone days now without one since the update. Here's hoping that the issue is fixed!

I dont understand why it worked for you, I just got the blue screen. Does anyone here use Chrome, because I do.

I'll try to do a PRAM and Startup cache reset.

So you won't feel alone. I managed to get a blue screen quiting an old game I had. Closed cover, sleep, re-opened back to desktop. Fixed, I trashed the game. Looks like you can still get one if the program has flaws. Google Chrome may need an update. I would't worry if you get a momentary blue screen unless interaction on your part is required to get rid of it. Two graphic cards to save power may look like a good idea, but not necessarily easy to make work without any flaws.