A few days ago it seems my hosting service upgraded Apache and now mutil-paged posts (posts with !--nextpage-- tag) are generating a 310 error on pages 2+ of the post. I found some clues in other older reports that this might be a permalink issue that may have been addressed in the next version. For an example, you can try this URL:
This is the URL as generated by WordPress. If you take off the trailing / you can actually see the correct post page, only the picture won't display. Can anyone confirm that this is a bug that's been addressed, and if there's any (relatively simple) fix I can apply in the meantime?