80 minutes of downtime a few hours ago.

Response from hosts:

Looks like there's a Virtuozzo system software update. I'm going to take the opportunity to update that so we can hopefully reduce these crashes.

Well, these crashes have all been driver-related and the updates include upgraded drivers, as well. So, cross your fingers!
These pages show load and uptime if anyone is interested:

http://www.cricketweb.net/uptime.php
http://www.cricketweb.net/about/load.php