I've left Cortex alone for a couple of months, mainly due to some other distractions, but it has been an interesting experiment in stability.
Or perhaps a very boring experiment in stability, since it has been rock solid. Yes, it's on Windows XP. It's got a dedicated PC with UPS and only absolute essential programs get installed alongside it, mainly FreeWX for the weather station and some xPL stuff.
About the only problem I could see building up was uncontrolled growth in the log files. Perhaps there should be a "Delete log files after x days" functionality.
But now I'm going to start playing again ...