Normally, when I view a topic shaded in orange (because I haven't read it), afterwards, its page symbol turns white. Every so often, though, there are long stretches where, for some or even all of the topics, this is not the case. Does this happen to any of you? Logging out and in again marks all my topics as read, but doesn't fix them. Do any of you know how to deal with this problem?
What internet browser are you using?
Firefox
I've had the same problem, also with Firefox. I can't say I have a solution, it just seems to fix itself eventually.
Quitting firefox and then restarting it seems to fix the problem.