Thanks Don. The link you provided to the forum actually does take me to the forums, not the User CP page.
Not sure if this is connected or not, but I haven’t seen any closed envelopes indicating a thread I have not seen when I use the new posts button. If I go into specific forums the closed envelopes show up. I have tried marking all posts read upon leaving, but that doe not make any difference. From now on I will just visit each forum individually.
Very soon I am upgrading to my new computer and I suspect that will fix everything. Although we’ve had it for so many years it is now an old model.