Here is basically all I know of audio, except you may also look at a
list of audio devices/drivers in Device Manager. If you go that way,
BETTER be sure of what you've got now, so that you may change back to
it. To see what you've got now...

(a) "Control Panel, System, Device Manager tab, Sound Video & Game
Controllers branch".
(b) D-Clk the devices under it, each in turn, for Properties.
(c) Click the Driver tab, & then click the "Update Driver button".
(d) Bolt "Display a list..", & click "Next".
What shows up in the "Models" box?
(e) Finally, bolt "Show all hardware".
What is lit up in both the left & right panes?

That is what is currently installed & active. If you choose others from
the left/right panes (& click "Next"), it will constitute an uninstall
of the old & an install of the new. Well, here is all I know...

With the computer off, un/re-plug all audio wires.

Well, try "START, Run, CDPLAYER". It is simpler than, for instance, WMP.
If you get sound there, then it's a setting in WMP, or whatever, at
fault.

(1) Is the sound muted? D-Clk the speaker icon in the Tray to see. If no
speaker is there, then "START button, Settings, Control Panel,
Multimedia", & check the box for it at bottom.

(2) "Control Panel, Add/Remove Programs, Windows Setup tab, Multimedia,
Volume Control". If it is shown as installed (checked), then uncheck it,
OK your way out, & even perhaps reboot. Then, do it all again, but this
time CHECK it.

(3) In my case, the volume control appears to be part of my audio
drivers...

When I do the following procedure, I am asked to supply drivers during
boot. I bypass the request, & end up with none. Then, I run an .exe
downloaded from Compaq, which puts them back in. Or, I go to a folder &
click a Setup.exe in there, when I want the older drivers.

The point is-- YOU may have to do it that way too. So, prepare.

(a) Boot to Safe Mode. (Enable Startup Menu at "START, Run, MSConfig,
Advanced button.)
(b) "Control Panel, System, Device Manager tab".
(c) Open the "Sound, video & game controllers" branch, & delete all
devices under it. This is meant to eliminate "ghosts" of drivers past,
which are invisible in Normal Mode.
(d) Reboot to Normal Mode.
(e) Install your Sound Drivers, if they haven't automatically been
detected.


--
Thanks or Good Luck,
There may be humor in this post, and,
Naturally, you will not sue,
should things get worse after this,
PCR

"LIV" wrote in message
...
| I CANNOT GET SOUND ON MY COMPUTER FOR I BELIVE I CHANGED
| MY DRIVER BY ACCIDENT THE ERROR MESSAGE I GET IS AS
| FOLLOWS: AND COULD YOU PLEASE TELL ME HOW I COULD FIX THE
| PROBLEM, THANKS!
|
|
| PRO0xC00D11BA: 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
|