I''ve been doing heavy development on 0.13.1 on webrick on my powerbook for the past couple of days, and every once in a while, I''ll get a SessionRestoreError: #<ActionController::SessionRestoreError: Session contained objects where the class definition wasn''t available. Remember to require classes for all objects kept in the session. (Original exception: uninitialized constant User [NameError])> This happens after I''ve been running webrick for anywhere from 10 minutes to 3 hours. It doesn''t seem to be connected to starting or ending the session -- it happens after a long string of successful page loads, and I can''t pin down what might be causing it. (I do have model :user in my ApplicationController, so that can''t be the issue) I''m guessing this is some sort of webrick-specific error, but I''d like to verify that; has anyone else experienced similar problems with webrick recently?