I've had my 15" MBPro since Dec 2008 aaannnnd a screen flicker since early to mid-2009. I can't decide if i'm relieved or disappointed to find this thread in my google search & see that it's 84 pages long & dates back to...2008!!! Obviously this is a huge issue (here all this time i've been feeling sorry for myself- like everyone else got great Apples & I got a LEMON!) ha Now i don't feel so alone AND i won't be running out dumping $1500 into fixes that don't work!!
I'm stuck though-I cant part with the machine because i need it everyday to work (I'm 100% commission only graphics & use it to work in clients offices, etc...) but the flicker is getting worse & worse...not only is it mad annoying-i'm also worried that the screen will black out forever...
This morning I tried the internal switch from the 9400 graphics card to the 9600 one & after like 10 minutes I switched it back & it hasn't flickered in about 2 hours so maybe I've got at least a temporary fix??? I never had tried that route before- & I haven't left it on the 9600 setting long AT ALL because it already has trouble cooling down (the fan on this model *****) & i don't want to run it hot or fry anything internally...
Anyway- hopefully this works for a while until they come up with a more long term fix because Jason is right on- when it comes to graphic design- what else can we choose you know? Apple knows they have us between a rock & a hard place...I still feel a little gypped that MAC has such a great reputation & all those other systems seem to work fabulous & mine is pretty crappy & was A LOT of money!! :-/
Keeping my fingers crossed that a solution is around the corner for us all!