This is really kind of a weird issue. As an administrator, when attempting to view all comments, empty spam, occasionally post, and at other random times, I instead get a white screen. This seems to be tied directly to the user role, as I created a test account and granted it admin privileges and experienced the same issue. When I changed the test account to any other user role, it was fine.
I'm fairly certain that this is a plugin issue, as I have a number of plugins installed and recently had some issues with them (that have since been fixed). However, with the number of plugins I do have installed, I would like to see if anyone had any idea what might cause this without having to resort to trial-and-error.