We believe we’ve solved the random system reboots and concurrent station outages. The station had been running on a 512MB Ubuntu virtual server. We moved it to a different underlying type of virtual server, one which isolates the other virtual servers better from each other. For the techies among our listeners, we previously were on an OpenVZ-based virtual server, and we’ve moved to a Xen-based virtual server. We believe this will take care of the random reboots. Thanks for your patience..