OK, no more finding bugs you bastards! The forum is now a well oiled machine OK?
Sorry to disappoint you, but the problem is re-occurring for me. I am using IE7 and I am still missing out on Posts that are not showing up in the "Show unread posts since last visit" list 
Matthew
Just thinking out aloud - If you logout, then login - Do the posts appear ?
I notice that new posts since I my last login (I'm still logged in) do not appear. But I sometimes stay logged in for 45 minutes or more.
No, logging out and logging back in did not cause the posts to appear
Matthew
