Why is my border disappearing when I use CSS on the right side of my table?

Welcome to the "fun" of browser implementation of CSS, and, specifically the "box model". Furthermore, IE is notorious for not recognizing "boundaries", especially when setting the width on tables.

Some really good explanations, and a few ways to get around the issues encountered on the various browsers can be found at QuirksMode: http://www.quirksmode.org/

I've had to look there on several occasions, and find it to be very helpful.

Huge input. It has everything to do with the width of the table. I had a nested table inside the <td> tag that was defined with a CSS class. I simply made that table's width a little bit less and then it showed up in explorer also. Kind of sucks that it cant just work anyway, but it looks a lot better now.