It seem's that you haven't fully understand my post above. Whatever IM program you might be using, if it has automatic mic or speaker audio control (meaning if it controls the audio levels for the mic and speakers automatically). If possible you can, disable that feature and set the levels below mid-way manually. Putting the levels too high to max, won't help at all. There must be a program on your system that has taken control of the audio. So everytime you adjust the the windows mixer controls it will revert back to whatever IM has taken control of the audio.