I am fairly new to the Mac. After months of deliberation whether to buy a PC or a Mac, and comparing PC's with similar specifications to the Apple lineup, I purchased my first MacBook Pro, an Early 2011 15.4-inch refurbished model, in November of 2011, and it has been flawless. I have made a seamless transition from Windows 7 to OS X Lion. I quickly picked up the gestures and the other little things that make OS X what it is. That all changed when I updated to OS X 10.7.3. I started getting Kernel Panics constantly, and then, the worst happened - my sound completely stopped working. I started doing the usual troubleshooting steps; rebooting and checking the settings. Resetting the SMC and PRAM did nothing for me; it had reportedly fixed issues that other users were encountering. Frustrated, and after making a backup with Time Machine, I took my machine into the Apple Store on a ...


















