From: Brettster on
I have two microphones and an iMac. The iMac has two input holes in
the back; one is for headphones and the other is presumably for a mic.
I can't get the iMac to recognize either mic. I've gone into System
Preferences ---> Sound and changed the input to "Audio Line-in Port,"
but still nothing. The built-in mic works fine. I am wondering which
of the following could be the culprit:

A) There's some additional software / preference issue still
unresolved.

B) Both mics I have are broken.

C) Both mics I have are not Mac compatible.

D) The iMac "Audio Line-in Port" is non-operational for some reason.

D) All of the above.

E) None of the above; the X-Factor answer I can't think of.

Any ideas?

Thanks,

Brett