Getting sound from both inbuilt and out speakers spontaneously.

make sure that your mic input is not muted. look under control panel/sound and audio devices, then under your microphone, select "volume" and make sure the input is selected (with a chack mark in the box under the mic volume control) and not muted.

hi,
Please download and install the drivers from the following link:

http://saysprasad.wordpress.com/2008/09/11/compaq-presario-c785tu-drivers-for-windows-xp/

Obviously you require a 4.1 system audio/sound card for the best sound output since it has inbuilt amplifier and OS specific driver(latest) which you should get along with the sound card. If you are using, check compaitibility issues to with Vista....................sodeep

ghgt

go to control panel and find the device manager, you can also get thier by clicking the my computer icon and selecting manage, once their find the audio device drivers and uninstall them, then reboot, it will reinstall automaticly and you should be on your way, if not try opening the audio preferences from the control panel, goign to devices and the n selecting one or the other as the output

When you plug the headphones in what happens is that inside of the jack the internal speakers  are disconnected and the sound goes to the headphones. If both are playing either the jack is not inserted far enough or  female plug is loose or defective.  Replace or repair the female plug.

hi this saravanan

i am use in compaq presario c773tu model windows xp install but audio driver not install audio driver pls sent the mail id [email protected]

plz help me

send us all driver of c785tu

this problem only comes due to the sound drivers..use appropriate sound driver recommended by the manufacturer