DavidMLewis wrote:Hi Dan,

I have a little more information: the problem doesn't occur with Safari 3.1 on my Windows machine at work, nor with the same browser on my wife's MacBook Pro at home. It only happens, again with the same browser and OS version as my wife has, on my five-year-old 667 MHz PowerBook. This suggests that perhaps something is timing out a bit early on your end, maybe?

Best,
David

For the record, and for anybody else having this problem (which affects all phpBB-based sites, not just H-B), I finally couldn't sleep and chased it down. It's an interaction with an application called HistoryHound that indexes the pages of sites you've visited. The developer was kind enough to nail what was happening: HistoryHound uses WebKit, the framework also used by Safari, and also uses the same cookie store. When it tries to index one of the forum pages, phpBB detects that a different "browser" is trying to access the site, and invalidates the session ID cookie. The solution is to go into the Filters tab of HistoryHound's preferences and add "/forum", "/BB/", "forums.", and "forum." to the list of filters that when matched will keep it from indexing a URL.

Best,
David