AFAIK jockey ("Hardware Drivers") bugs you automatically if it sees any third-party, proprietary drivers for installing from the tray. Most often third-party, proprietary drivers are unnecessary and non-existent, a happy coincidence.
For Macbook sound, see Ubuntu's community documentation. If you're running Mint 8 (Gloria), then Ubuntu's equivalent is karmic, but instructions for jaunty and intrepid may well help as well. Good luck.