We're considering Litespeed for one of our production servers. We've successfully installed litespeed Standard under MacOS 10.5.7 (Intel). I've tried to install the latest PHP version 5.2.10 within the web admin console, but it always fails with configure: error: libpng.(a|so) not found. It's a fresh test system with a blank os x server installation. What do I have to do get php 5.2.10 working with Litespeed?