i can hear you,but you cant hear me

[roaddogg]

ok heres the story i had to reformatt my hard drive and i installed everything back the rite way well 1 problem i cant use my mic i can hear someone talking but for me to talk to them they cant hear me i went in the control panel and everything is on nothing is on mute that isnt suppose to be .i ran the test on it and it say's to check to see if its pluged in the right place well its .i think it has to do with something on the motherboard.any suggestion