Just been told by the red numbers that there are thousands of unread posts in the forums I read. When I open them, there isn't one new post to be seen! Unusual.

Yes I get similar glitch occasionally. It seems to correct itself in time.

You need to click on your name, this will bring up a user menu. Second item from the bottom is "Cookies". Click on that and cancel your cookies.

This will resolve the problem.

You will need to log on again.

I have never tried it but you could probably go to the bottom of the page and use the "Mark all read" feature.

Thank you Peter. It's only very occasionally but I'll try that if it happens again.