make sure your mic is "Default Format", in the properties for the mic is at 44100Hz
also, make sure your sound settings are the SAME AS THE MIC.... if your mic is at 96000hz or 44100 or w/e it is, your headphone settings/properties should be the same..
that could be your issue, i would bet it is! I used to have same problem, i wouldn't even go for 96000ghz, my mic was static at that no matter what...