I use Opera browser, but you are right Tom. Caching is on and the "check modified" setting was for 5 hours. I went to another site and I could see the screen flash after reading a message so they must be forcing a refresh to erase the "new". Just never noticed it before. I've changed the setting to always "check modified" and works okay now. Thanks a lot for the help.
Still have the situation where the stories I choose not to read still say "new" when I leave the board and come back. That's usually about half of them so it's a bit of a pain to have to reread all the subjects again each time. Does your's clear all the "new"s when you leave and come back?
Chuck