Recently, I switched to Windows 10 from Windows 8.1. Since then, I've been experiencing terrible video chat quality. First, the audio doesn't sync with video (gets delayed). Second, caller and recipient videos freeze or turn on and off intermittently. So I wonder if there's anyone who has experienced the same problems? I've been told by the Realtimeboard staff that it could be my Internet connection. However, I wonder why I didn't encounter these issues while using Windows 8.1 (with the same connection and PC RAM). We use the board to teach, and these issues may eventually affect student evaluation and performance. Please advise on what else I should do. Thanks.