i submmited this to apple forum but got no response.  i am not knowledgeable about drivers and apps. let me rephrase my earlier question.  do you think an app could be created that would let owners of laptops that can't get mountain lion get it by fixing 32-bit GPU drivers by writing replacement drivers? earlier question: since my mac is early 2008, i can't get mountain lion.  (i upped memory to 4 when i got lion.) so can someone made an app to fix 32-bit GPU...