I have had GCC v 1.0.9.2 running without issue. I have tried several times to install v 1.0.9.4 but each time it fails to connect. If I use the button to check devices, no devices- none at all - appear in Device Manager. If I check Device Manager manually ie without using the button in GCC then the Com port is the same as it was in v 1.0.9.2. I can go back and re-install v1.0.9.2 and I get a connection every time. I have tried installing v1.0.9.4 several times now and each time I cannot establish a connection.