I'm going to run a DB repair on the site as well as a few other changes, so the site may appear to not make show any new posts for an hour while I do this. I'm really sorry about this.
Haha, I think hamsters may have been a better alternative to the server today . I've altered the logging to record any IIS problem at all, as it looks like the IIS service failed and then the onboard scripts kicked in to action and rebooted the server after it took too long to recover.
It looks like the hosting monitoring service rebooted the server twice last night, but I can't see anything wrong at all... so I've temporarily disabled it to see if I can catch anything.