ok, I understand what you're saying, Tosa.
you may be right.
But then there probably is another issue, because whenever I leave home and return the other day, threads that I can see are new (because the last post's date & time are listed next to it) are not highlighted. It's quite likely that in the 10 hours or more while I've been gone the server did find some spare time to update the cookies.

Anyway, I really really don't want to make a bigger deal out of this than it really is.
I just wanted to make you aware of this and ask if other people have had the same issue and whether they've found a solution.
But it's definitely something I can live with, so don't waste too much time on this.

Thank you