Well, actually I thought ShadedBorder is kind of discontinued (in favor of LiquidCanvas)... But I proofed myself wrong and here it is: The first update for ShadedBorder since 1.5 years!

It fixes the IE8 1px overlap bug reported by Tony and comes with a performance optimization for every browser supported: The ShadedBorder nodes will only be cloned on demand.

Grab version 0.6.2 now at the ShadedBorder project page.