Lately ( about since the administrative upgrade I think?) I've noticed that after poking about the site for a while, something interests me and I want to pm a member, only to find out that I've "timed out" and have to log in again. Then I have to navigate back to where I was. Same thing if I take more than a couple minutes composing a pm. It seems to me that previously I was logged in for my entire viewing session. Perhaps you could restore that feature, or at least extend the period before timing out? Or is there some compelling reason to make it as short as it is now?