Seriously though, make sure your chair is decent. I replaced mine, which fixed my posture which meant that I wasn't leaning on the wrong nerves. It helped.
Come now, let's don't make zed have yet another hissy fit. You are not allowed to disagree with him, lest he find your home address and post it to twitter.
I used it for free for a few months, and finally bought the license 2 months ago. I figured, it's a damn nice piece of software, and I use it pretty much non-stop for work.