I'm going to try upgrading to MovableType 3.2 this afternoon to see if that helps alleviate the odd errors that have been occuring. Just FYI. Some format stuff will change as I am going to simplify the main template and see if that helps as well. Please bear with me. Thanks.

Update: Just about there.

Update2: A very frustrating day. My upgrade went fine, but the thing I upgraded to try to get rid of, the persistent nagging errors visitors have been experiencing, are still with me, and I cannot rebuild the archives in order to bring everything into line with some of the changes I have made. I am working with both MovableType and Hosting Matters support (and banging my own head against the wall) to resolve this. Thanks again for your patience, but I'm done for tonight.