Audio playback problem

[Mad Compie]

I recently put a new GForce4 MX SE (PCI, from xFx) in my friend's PC.
Now he claims that during audio playback, he often hears a little "scratch"...
I went to hear this phenomenon and I found out that this was only the case when using streaming audio from apps like Windows Media Player, etc. (MP3, WAV, ... directly from hard disk)
It was not the case when using the ordinary Windows Sound Recorder, because this loads the whole sound file.
The PC never did this before.
Any suggestions?

[Cander]

Did you seat the video card real close to the sound card? You could be getting static from it if so.

[Mad Compie]

The sound card is embedded onto the motherboard.
But that would be ambigious, not? Because audio plays fine with Windows Sound Recorder or any other simple .WAV player.
The problem only arises when playing streaming audio.

[parksie]

It could be sharing an IRQ with your IDE controller, so disk accesses conflict. What did you have before the GeForce?

Also try moving it to a different PCI slot.

[DiGiTaIErRoR]

What are the other system specs?

[Mad Compie]

Before, the video IC was also integrated onto the motherboard.
The PC is a Celeron 1GHz without a AGP slot (hence, my choice for the GeForce PCI card from XfX).
The disk space is also large enough, my friend mostly plays .WAV files (so, large files: +- 30Mb per file).
The problem is: some little "scratch" at a certain interval ; it takes some milliseconds I guess, but you can really hear it during playback.
When the file is loaded with let's say "Sound recorder" it plays perfectly (because I guess that the whole file is loaded into memory, not?)