I'm having the dreaded hanging iConfig blank screen/not responding problem on Windows 10. This is happening since I've swapped my two iCM4+'s for a mio10 (it also happened with my iCM2+). I've reinstalled iConfig, trying both 4.2.0 and 4.2.1 with no success. I filed a support ticket yesterday but no answer so far. At least with the iCMs I could use an iOS device as backup configuration but that's not available with the mio.