Hi. I'm one of the many users who are affected by the 2011 MacBook Pro discrete graphics fiasco, where the machine would halt if it switched to discrete AMD GPU. I already ordered another machine but I was wondering if I can resurrect my MacBook Pro for casual tasks. GFxcardstatus works most of the time butneouldnstill hang occasionally. Then I remembered that when I BOUGHT the machine, it did not have automatic graphics switching. You had to choose which GPU you want in system preferences. That wold be ideal for me, I'll just set it to integrated the whole time. Does anyone remember which version of OS X had this feature?