As you've probably noticed, we're still having problems. The issue is with straight-out-of-the-box Apache 2.0.XX which acts as a front-end to our app servers. Our work around right now is to restart these frequently, but this isn't nearly a perfect solution. Our long term solution is to go "headless", meaning no front end servers. We've got this 98% working but the devil's in the details with this one. This long term solution may be in first thing tomorrow morning, with a little luck. If not, we're upgrading to the latest latest version and seeing if that will work.
For future Google reference, these keywords may help: apache, mod_rewrite, mod_proxy, corrupt, mangled URLs, regex.