I had a problem while reading Cosa Nostra.

I have to use the +/- functions while reading to increase the font size to be able to read.

The first two chapters of the above story, the function seems to broke. All it does is make the white space between the chapter box selector and the solid light blue header(?) increase.

Once I get to the 3rd chapter the font explodes on my screen and I have reduce the font size... Chapter 4-6 will drop the formating and 7-8 will pick it back up.

I remember this happening when I had Firefox 2 running and it is doing the same thing on Firefox 3rc1. I have yet to try it in IE, i'll give it a try and edit in the results in a few minutes.

*edit*
It is doing the same thing in IE.

*edit 2*
Attached is a SS from IE showing the blue bar thingy I was talking about. The only difference with it in FF is that spans across the whole screen.

 

I can't remember the stories, but I remember at least two more having the same problem as I described in the OP. I am not sure how much that little bit of information helps you...

*helpful edit?*
I just ran it through the W3 HTML validator and it came up with the following results...

I also ran chapter 3 through it as well only got one error...