I've been wanting to ask you this question for a while, but I needed the snapshot.
Every once in a while, this red border (probably 5 pixels) will show around (top, left and right) my blog's pages and reaches to the footer, for reasons that I do not understand. I tried locating code with Firebug, but I can't seem to find anything relevant.
The problem with this border is that it only shows randomly, rarely. I want to keep it! I crave it! It looks so nice on my blog that I want to find a way to reproduce it.