Please help me with this. I'm afraid it will break my hard drive soon! Ever since I ran Onyx last week, mds keeps reading from my harddrive at about 2mb/second. For example I've only had my computer open for a couple of hours and done very little, just some browsing, and Activity Monitor shows 7.52GB read and 6.44GB written... What the heck is going on?? How can I stop this? I tried re-running Onyx and it did not help.