Okay... The runtime error I get will only happen if armory runs and windows is forced to go into the lock screen. It does not happen right away but after 10minutes or so in the lock screen, armory is terminated with a runtime error.
Strange.
Ahh, I bet the harddrives spin down and/or the network connection is disabled. That would most certainly mess with Armory. I don't even know what would happen...
I have sleep/hibernate/spin-down disabled on all my systems, so I would never notice...