I've been working with Zai Lynch on bringing the hCalendar Event templates up to scratch for deployment and replacement of the existing Office Hours template system. I'd gotten to the point where I'd transposed Tuesday's ( http://wiki.secondlife.com/wiki/Office Hours/By Day#Tuesday ) office hours to the new system to verify that Technorati's calendar conversion service picked the events up correctly (which it did). Then I check it later, and Thunderbird indicates the calendar is unreachable. A quick check of my contribution list ( https://wiki.secondlife.com/wiki/Special:Contributions/SignpostMarv_Martin ) reveals that all contributions I made to the wiki between the 8th of January and the 15th have just disappeared. There's nothing in the logs that would indicate the content was deleted. This bug may or may not be related to WEB-871, which indicates that MediaWiki thinks my IP address is either 192.168.200.118 or 10.150.103.122 when I'm logged out.