tu parles anglais j´espere ?
http://h10025.www1.hp.com/ewfrf/wc/fastFaqLiteDocument?lc=en&cc=us&dlc=en&product=18703&docname=c00035556
Click Options again and click Advanced Controls. If Advanced Controls is unavailable (ce qui est ton cas), then an alternate microphone is not available. Proceed to the next series of steps.
aprs je te laisse, je dois y aller