 <p>While this is hardly an easy solution to implement quickly, I find that running Netbeans 6.9 on a multi-core processor works. While it might ramp up on one core, the other (3 in my case) are still free for other tasks. Given that you're on a Mac, YMMV. </p> <p>Of course, it would be better to avoid the CPU hog in the first place, but if you can't find the source, but still love the IDE (as I do)...</p>