I also feel the color of the borders is not yet perfect. However, it's not only the main index page that was much harder to read - also the postings themselves, when viewed in flat mode and with the headers on the left side, ran into each other, which made them very hard to read. So, Paul, please try to change the color of the borders (did you try plain black?), but don't turn them off totally again.
Daniel
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"I love deadlines. I love the WHOOSHing noise they make as they go by." - Douglas Adams