I have the Toshiba dynadock version, purchased from the MS store as they did not have the MS docking station. Was working fine for a week but now my external monitors , although they show are connected, the screens are blank. I have 2 of these docking stations (1 for home, 1 for office) and have the same problem on both, so not a hardware problem. Any ideas? I've tried updating the driver and uninstalling. Viewing the MS update history, there was no update that may have caused it. Thanks.