Hi all, Long time member not a frequent poster. i have an issue with my Macbook Pro 2.26 Intel Core 2 Duo. I purchased and downloaded the Mountain lion from the mac store, however after installation i have had no problems but ONE. My internal speakers does not work natively with my OSX. Surprisingly VLC does somehow get my speakers to work, however it is at a much lower volume then previously. Any help would be appreciated. Thanks in advance.