I mainly use teamspeak, you can adjust the Capture level of your mic in there to make it more or less sensitive. Make sure your audio/mic levels are up in the program you're using to chat. If you connect the mic through the jack, you plugging it into the MB or do you have a jack connection on the case? Your first pic for the GameCon 780 doesn't look like it's actually being used as the mic. The drivers for it allows a microphone level adjustment, but my sound options in Windows 7 does not have a microphone boost option as I did back under Vista. I have Logitec G35 I use, it only connects via USB.
