The sound goesand off. what could be the problem.

try installing sound card drivers

Hi,Sound profiles define how your BlackBerry device alerts you of phone calls, messages, reminders, and browser content.

Your device has a Normal sound profile and six other preloaded sound profiles: Loud, Medium, Vibrate Only, Silent, Phone Calls Only, and All Alerts Off.

By default, some of the settings in the preloaded sound profiles are based on the settings in the Normal sound profile. For example, when you change the ring tone in the Normal sound profile, the ring tone in the Loud, Medium, and Phone Calls Only sound profiles is automatically updated. If you do not want specific settings for a preloaded sound profile to update automatically when you change the corresponding setting in the Normal profile, you can manually change the settings in that preloaded sound profile.

You can create custom sound profiles. When you assign a custom ring tone to a contact, the ring tone is always active and does not change when you switch sound profiles unless you switch to the All Alerts Off sound profile. Call and message notifications for your contacts might be audible even if you switch your sound profile to Silent or Vibrate Only.

You can change, rename, and delete most preloaded sound profiles. You cannot delete the Vibrate Only sound profile and you cannot change, rename or delete the All Alerts Off sound profiles. You can change the Normal sound profile, but you cannot rename or delete it because some of the settings in the other preloaded sound profiles are based on the settings in the Normal sound profile.


Sound profiles define how your BlackBerry® device alerts you of phone calls, messages, reminders, and browser content.

Your device has a Normal sound profile and six other preloaded sound profiles: Loud, Medium, Vibrate Only, Silent, Phone Calls Only, and All Alerts Off.

By default, some of the settings in the preloaded sound profiles are based on the settings in the Normal sound profile. For example, when you change the ring tone in the Normal sound profile, the ring tone in the Loud, Medium, and Phone Calls Only sound profiles is automatically updated. If you do not want specific settings for a preloaded sound profile to update automatically when you change the corresponding setting in the Normal profile, you can manually change the settings in that preloaded sound profile.

You can create custom sound profiles. When you assign a custom ring tone to a contact, the ring tone is always active and does not change when you switch sound profiles unless you switch to the All Alerts Off sound profile. Call and message notifications for your contacts might be audible even if you switch your sound profile to Silent or Vibrate Only.

You can change, rename, and delete most preloaded sound profiles. You cannot delete the Vibrate Only sound profile and you cannot change, rename or delete the All Alerts Off sound profiles. You can change the Normal sound profile, but you cannot rename or delete it because some of the settings in the other preloaded sound profiles are based on the settings in the Normal sound profile.


Change a sound profile

If you change a setting in a preloaded sound profile that is based on the Normal sound profile, that change will override the corresponding Normal sound profile setting in the preloaded sound profile.

1. On the Home screen, click the Sounds icon.
2. Perform one of the following actions:
* To change the active sound profile, click Set Ring Tones/Alerts.
* To change a custom or preloaded sound profile, click Edit Profiles. Click a profile.
3. Click the application or item that you want to change.
4. Change the notification information.
5. Press the Menu key.
6. Click Save.
7. Press the Menu key.
8. Click Save.


Hope that helped...

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Your sound card might be in use by another application.

0xC00D11BA: Cannot play the file
Windows Media Player cannot play the file because there is a problem with
your sound device, such as a sound card or sound controller. You may
encounter this error message for one of the following reasons:

Your sound device is in use by another program. Quit other programs that may
be using your sound device, and then try to play the file again.
Your sound device is not functioning properly. To troubleshoot the problem,
see the Sound Troubleshooter in Windows Help or refer to your sound device's
documentation.
You do not have a sound device installed on your computer. Install a sound
device, and then try to play the file again.
Error ID = 0xC00D11BA, Condition ID = 0x00000000

look for the model number on the card and goto the manufactures website and download the driver

Slight difference.....The sound quality difference is observed.
You can find out the difference.In every motherboard on board sound is not so good.But in sound cards it is disigned specifically for sound.

if it helps

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i need creative sound card driwer

in your computer sound card problem. otherwise please check the control pannal in sounds and vedios.
then check the computer wheather the sound card installed or not. if the sound card not installed please installed the sound card drivers.

i need help put sound on my computer, and where to go to download a sound device driver

Select control panel >Sound and audio devices >select Sounds> Sound scheme options check whether the windows default theme is set. if not then set windows default theme.

thank you !