I have noticed something strange on this forum, and not sure if it is a board issue or my system... I frequently will open a thread to read and get side tracked, and leave the thread on the screen for quite some time. A lot of times, when I come back and go back to the index, everything is marked read, and this only happens when I have a long idle time in a thread... anyone else experience this?

I have noticed this with some PhpBB boards. I only had this problem on the Nokia 770 so far. Maybe there's some Opera <-> PhpBB incompatibility?