Groupwise opens fine, and messages open fine as well. However, the first time I try to reply to a message, the reply screen comes up and hangs for 10 to 15 minutes (or longer) before it will let me reply. Sometimes I can get it to reply a bit faster by opening task manager - though it still takes about 5 minutes. Once I have replied to one message, I can then reply to all other messages instantly. Uninstall NIS - everything works fine!