[Kumar Kumar]

I think I know the answer to your problem. I also faced the same problem and solved it myself.

Goto
Edit -> Audio Hardware Setup.

Now under the “Edit View” tab you will see the button “Control Panel…”
Click on that button.
In the next window you will see two groups

1)DirectSound Ouput Ports
2)DirectSound Input Ports

Under DirectSound Input Ports whatever is present, you will see that it is not selected. Select it (a cross mark appears) and then click OK and OK.
Thats it! Everything should be fine 🙂
Enjoy…