OWA windows 2003 SBS

Has anybody seen Outlook Web Access not finish loading? It worked until I applied one of Microsoft?s “updates” then it quit working. The GUI kind of 1/2 loads the stops. It just says “loading”. If you log off and log back on under the basic client then the GUI loads better, but still doesn’t work properly. The mail receives and delivers fine in Outlook, but the GUI in OWA is just hosed. Any ideas?