Hi rjtr6989 and welcome to the community
Is this microphone a USB? If so, this forum is littered with
posts where odd behavior is observed with these types of devices.
For some reason, other applications read the mike just fine, while
Captivate won't recognize it. Additionally, we see posts where
Captivate reads the mike fine one day, but fails the next. Go
figure. Hopefully version 2 will correct this behavior. But we just
don't know until we see it in use.
Also, what is your sound card? If it's RealTek, there is a
known issue with Captivate not working with these. No workaround
I'm aware of.
Your best bet is to acquire a headset microphone with dual
connectors. The little round pin connectors that plug into the
audio mic and speaker ports.
Cheers... Rick