Yap. I always re-boot after any updates, which isn't probably necessary these days, but I do it anyway. Did various things. Updated the TrIR software, software installation hung halfway through, installed some 'usb x64 drivers' that I'd never seen before, uninstalled them, in desperation did a system restore, installed all latest windows updates, then uninstalled them, then did another system restore to an earlier time, then posted here in a pure fit of pique. How could an update to DCS world affect my stand alone install of A-10C??