"Regarding the hypertext essay-marking system, it's interesting how obvious those little run-ons were when they were highlighted in red! Even after the millions of times I proof read it I still didn't see those (Okay, it wasn't millions it just seemed like it). The system worked very well for me.  I didn't have much of an experience with it, but that's a good thing, right? Anyway, thanks for the kind words and suggestions."