I'm also getting the internal server error, but in addition, when pages load (particularly when I hit "new" or "all") sometimes only part of the messages will load. It looks like the page truncates itself, since the quick reply & other "usual" stuff at the bottom of the page isn't there. Sometimes reloading the page helps. Sometimes that causes a server error. Most of the time I can eventually make it show. Just thought someone should know.
