Now before anyone says this should be filed under software, I think this problem is actually a hardware issue rather than software. I could be wrong though. Basically I use Logic Pro 9 to produce my music with. I am doing this on a Mid 2012 MacBook Pro, 2.4GHz i7, 8Gb RAM. If I am using my external sound card the playback from Logic is perfect, no crashes at all. This is the same if I plug headphones directly into the Mac. No problems. As soon as I start to use the built in speakers how ever, the Mac freaks out after about 20 seconds of Logic playback and gives me the ever ominous "Disk is too slow or System Overload. (-10010)" error. I have taken the MBP into a Mac store and they tightened a few screws up inside to make sure the vibrations from the speakers weren't causing the hard drive to crash. We also went through some of the sound card driver selections to make sure there wasn't a problem there. (Selecting built-in output does alleviate the problem slightly but not by much) But still the problem exists. After so many seconds playback, maximum usually being 20-30 seconds, Logic crashes reliably as ever. Anyone have an idea what the problem may be? Answers on a post card. Much love.