No volume control

[didikai]

After a program freeze on my computer, I no longer get the audio on the welcome screen,
and my volume control on my keyboard does not work.
I can play audio via hard drive, CD player etc. I can control the volume through the mouse with media player. Everything else works fine.

I've tried another keyboard with the same results so it's a computer problem

I also cannot get the volume icon onto the task bar. I tick the box on the volume setup but it doesn't show on the task bar.

Running XP with SP2

[Barnabas]

Go to "Sounds and audio device properties". Select device volume, place volume icon in the taskbar. If that fails, time to reinstall the drivers.

[didikai]

Go to "Sounds and audio device properties". Select device volume, place volume icon in the taskbar. If that fails, time to reinstall the drivers.

I reloaded Sound card drivers.
No different.
I would say the sound card is not the problem. I can play MP3s, video with audio, with no problem.
But I have found that any program with an embedded audio sound does not play the sound.Could this be a Windows problem? If so how can I fix it?

Thanks

[TooLFooL]

what program is freezing?

[didikai]

what program is freezing?

It was just a streaming radio prog. It froze, and I just closed the window. Program has gone now.

Just a recap:
Any external audio files (MP3s, Cds, video files on Hard Drive) all play fine. But I cannot control volume through keyboard
I have no Windows audio when the computer powers up and the welcome screen apears
I cannot alter volume from keyboard. But it works fine via mouse or arrow keys on Mediaplayer.
I cannot get volume icon onto tools menu
No sounds play on any programs (Nero, ImgBurn etc.)