I installed Rosetta stone, and my internal mic does not work with it. I know I have an internal mic because I use it with Skype. So, no problem there. I have an HP Pavillion, if that helps any. BTW, I have been through set up of the mic, disabling other mics (headsets, external, etc.) basically I have tried to correct anything I saw via the control panel. It doesn't make sense to me as I know my internal mic works for Skype. What am I missing here?

To fix this problem i would suggest to uninstall this software and scan PC with PC optimizer like Reginout to fix windows internal errors and corrupt registry entries.
Re-install the Rosetta stone. Disable Anti-Virus and Firewall before installing Rosetta Stone.

Create a security exception. 1. In ESET NOD32 (Smart Security 5), click Setup.
2. On the Setup screen, click Enter advanced setup... (bottom of screen).
3. On the Advanced setup screen, open Computer -> Antivirus and antispyware -> Exclusions.
4. Click Add , locate/select the Rosetta Stone Version 3 executable, then click OK. (In my case, the executable was in the C:\Program Files (x86)\Rosetta Stone Version 3 folder.)
5. Click OK on the Advanced setup screen.
Set the Rosetta Stone compatibility mode. 1. Right click the Rosetta Stone desktop icon or Start -> All programs -> Rosetta Stone.
2. Select Properties from the list.
3. Select the Compatibility tab.
4. Check the Run this program in compatibility mode box.
5. In the list below the check box, select the OS (in my case, Windows 7).
6. Click OK.

Try my steps:-
1.If you know removing installed programs from MAC, then please remove this application named-Rosetta Stone.
2. Now, remove all the cables & wires if your hardware audio device & turn off your computer.
3. Reconnect all the cables & wires & start your computer.
4. This time, reinstall the audio driver.

If this doesn't work, then you may try these ones:-
METHOD 1: Perform Step 1 to 3 again & install a different audio driver instead of Rosetta Stone.

METHOD 2: (This is only if METHOD 1 is also not working) Try your mic in any other MAC by installing Rosetta Stone in that system.

Note: You may search for a different audio driver at http://www.download.cnet.com/. Here search in mac column.
For any more support or any questions in future, you are the most welcome to contact me at [email protected].

This worked for me:

1) Right click on the Rosetta Stone icon in the Start menu
2) Click the "Compatibility" tab
3) Set it to run in compatibility mode with Windows Vista SP2 (mine was defaulted to run in XP compatibility mode, which seemed to be the problem)
4) Start the program again, if you are lucky all mics will now show up

Check out your Mic settings in Rosetta Stone, here are some detailed instructions in a form of a PDF file:
http://www.rosettastone.co.jp/common/doc/RWV3_QS_Headset_English_%28US%29.pdf

I started getting "Error 2123" recently, and spent A LOT of time searching for the fix. Here is what finally worked:

Find the hidden file "tracking.db3". It's in the hidden folder "ProgramData/Rosetta Stone" under the "C:" directory. Copy and paste it to the Rosetta Stone install directory (Program Files/Rosetta Stone).

Error 2123 should be gone, but now there will be Error 2125. So, in the Rosetta Stone install directory, run the "service_installer" .exe file by double-clicking it.

I have finally found a solution! I found it by chance on the rosetta stone troubleshooting page. I have nod 3 antivirus + firewall and in the firewall settings the rosetta stone application was blocked (it was denied internet access). I just deleted it from the list and the next time rosetta stone asked for internet access I clicked yes. Now rosetta stone detects both my dynamic microphone and my usb headset and it works fine. Hope this works for everybody.

I found the answer. Rosetta Stone has a problem detecting the mics if the speaker input is not in someway connected to the mic. I'm not exactly sure how it works, but I don't care and neither should you.

Follow these steps each time you want to use it and you should be fine.
*I'm on Vista, but this should work for every one.
1. Open Control Panel
2. Open Hardware and Sound
3.Open Sound
4.Set Line 1 as your Default Speaker
5. Refresh the Mic list
*All of your mics should now show up.
6. In Rosetta Stone, apply the mic you want and finish the setup.
7.Start whatever language you're using and switch back to the Sound menu.
8.Set whatever speaker you want to use as default.
*Rosetta Stone will continue to work fine until you close it, switch Users, or remove the mic.

In short you have to set the default speaker to LINE 1 to get the mics to appear. Then when you apply the settings switch the default speaker back.

I found the answer. Rosetta Stone has a problem detecting the mics if the speaker input is not in someway connected to the mic. I'm not exactly sure how it works, but I don't care and neither should you.

Follow these steps each time you want to use it and you should be fine.
*I'm on Vista, but this should work for every one.
1. Open Control Panel
2. Open Hardware and Sound
3.Open Sound
4.Set Line 1 as your Default Speaker
5. Refresh the Mic list
*All of your mics should now show up.
6. In Rosetta Stone, apply the mic you want and finish the setup.
7.Start whatever language you're using and switch back to the Sound menu.
8.Set whatever speaker you want to use as default.
*Rosetta Stone will continue to work fine until you close it, switch Users, or remove the mic.

In short you have to set the default speaker to LINE 1 to get the mics to appear. Then when you apply the settings switch the default speaker back.