We have a small group of people testing the IM client. Everything works fine except for the fact that the buddy list for everybody disappears after a period of time and people have to hit the refresh button in the browser and then the buddy list reappears and any instant messages that were sent pop up. Everything is fine when using a 3rd party client like Pidgin. The buddy list never disappears in Pidgin. I can't seem to find a bug report for this, just wanted to make sure it wasn't configuration related.