404 Errors Today 10/20/12 - Is Something Amiss?

I've had trouble today getting my clicks to actually click through - almost everything I've clicked on on ATS has brought up the 404 page. even my U2U inbox. Are you guys having trouble? Is the site being maintenanced? DOS attack? Or maybe I picked up a bug on my computer. Just trying to figure it out.

One of our web servers is acting like it wants to die. However, enough services are semi-functional such that our load balancer is convinced it's not dead yet -- hence the unpredictable 404 errors.

It's being removed from load balancing rotation, and diagnosed to see if it should be shot and replaced.