Help! Why my microphone doesnt write sounds from pc?

[adagio]

It's hard to explain, but my microphone recorded all the sounds (from outside and from pc), but now it's recording only incoming sounds (for example me), not PC. What should I do?

[pentachris]

Put the microphone closer to the speakers, perhaps?

Help us out with a few more details here. What program was capturing this sound? What end are you trying to achieve?