Sound just stopped working

hi,
i have Mainboard : Asus M2N32-SLI DELUXE
Processor : AMD Athlon 64 X2 5400+(BLACK) @ 3255 MHz
Memory :Corsair xms2 4096 MB (2 x 2048 DDR2-SDRAM )
Video Card : NVIDIA GeForce 9600 GT
Hdd: 250 gb seagate 7200rpm
Moniter: Samsung SyncMaster 19" 2ms
OS:xp 64bit
Speakers: Creative Inspire 5.1 with Sound Blaster 5.1.
it works fine,but it can't able to play sound in wmp.I don't know what happend. When I go into control panel and click sounds and audio devices I can not change any of the settings because the colors are like, dulled so when I try and click on anything nothing happens. It also says no audio device under the volume panel. I don't see what's wrong because I had sound before so I don't know what could have happend.

hi,
Most likely you need to install drivers for your sound card. To confirm this, please check your device Manager (right-click My Computer -> Manage -> Device Manager) for unknown/improperly installed devices.

Please visit you computer manufacturer’s website, and download drivers along with the installation instructions.or try to reinstall wmp.

That sounds like a driver issue with the sound card. Try re-installing the driver and see if that fixes it.

hi
i am also having same kind of problem.
Any recommendations and suggestions are appreciated.
Thanks in advance for your help!!!

To enable sound for the line-in connection

• Open Audio Devices and Sound Themes by clicking the Start button , clicking Control Panel, clicking Hardware and Sound, and then clicking Sound.
  
  
• Click the Playback tab, click Speakers, and then click Properties.
  
  
• Click the Levels tab, and then, under Line In, click the Mute button to enable sound for the line-in connection.
  

Are you having issues with sound when booted to Windows or OS X? If it is on Windows, re-run the bootcamp drivers disk installer and reboot. If it is on OS X, try running disk utility from the OS X restore DVD (insert disk, then reboot and hold down C to boot from the disk).