Hey Mbeers,
I had the same problem once upon a time. It got really dangerous driving the car because the steering was constantly sticking. I don't know all the technical terms, but here is what I was told by the guy who fixed mine. The steering box (rack) has gears in it that are made of different kinds of metal and they expand at different rates when heated. There is a tool used to set the "lash" (sort of like you do with a ring and pinion in a rear end). If the tolerences are too close cold, they will stick when heated. I also wrapped some heat reflective materal around mine for extra safety. I have had no "sticky steering" for a couple years now. Some of the other guys on here are much more knowledgable and know the proper terms for things, but I hope this helps you out.
