netmeeting

help.have a new amd k6r2b 350,everything runs fine except for netmeeting,i have win98 ie4.01,and everything used to work fine except that some time ago i started losing my microphone after a few minutes of talking with someone,so i p0ut in a new soundcard no change uninstalled netmeeting and reinstalled no luck,bought a new mike and still no luck,i run amd k6r2 350 and 64megs sdram,2.1gig. hdd.soundblaster awe64 sound,win98 ie4,01 everything works fine and imean very fine except in netmeeting,so if anyone can help me out with this i would sure appreciate,the family is allscatered all over america and netmeeting is the way we keep in touch,so pleas4 help,Clauded