Do you have a current generation cell phone (wireless web, blue tooth, etc)? I notice a ton of speaker and monitor interference when ,y cell is transferring data. turn off your phone if you have one. Also, try using an optical or ball mouse. The trackball could be the problem. Also, I would suggest checking the cables. Hope I helped
Aaron

Thanks for the suggestions, Aaron.

I don't have a cell phone or any wireless electronics nearby, but I'll remember that for the future. I'm using a Logitech trackball mouse and I really hope this isn't causing the noise bucause the thing has done wonders for my wrist! I'll try another mouse soon and report back.

Any other ideas out there? This has been an extremely helpful thread so far!

1. don't use anything wireless. wireless mouses & keyboards. if you have a wifi card in your computer, get it out. even if there isn't a wireless network up, it could cause interferance.

2. check your sound settings (configpanel -> sound), get the screen where you can set the volume of every part of your computer seperate (cdrom, microphone, line-in,...). go to the properties and make sure you check everything and click ok. now you'll see even more parts. mute all of them except the one you need. that might help too.

3. how is your sound now by the way?

I have nothing wireless anywhere inside or outside of the computer. Nada.

The mixer settings was my first stop. I've gone through all the sound settings and eliminated everything that is unnecessary.

My sound now is better than before I started this thread. I still have a small amount of what could be described as a scratching sound when I move the mouse and when some programs load. It is as described in the first post of the initial problem but very slight and I have to have all the volume cranked WAAAAY up to hear it. I was able to record two radio commercials with clean enough signals for input and output. None of the noise ended up on the spots. However, I know it is still there. As I said before, the motherboard - or at least the on board video controller - seems to be the culprit. I'll swap it out when I can.

I'm having a different hardware problem that I will be posting about. When the thread is up, I will put a link to the thread here. When you read the other thread you will understand why I'm connecting the two issues.

Thanks for the help and suggestions!

Here's the other thread I mentioned. http://www.astahost.com/Squealing-Noise-Anyone-t2997.html

I had the same symptoms, scratchy noise when scrolling etc, with an old PC and Windows XP with a SB Live Sound card

I had noticed that the PC was running rather slugish and decided to reinstall Windows, for some reason this fixed the sound scratch. I suspect the sound card drivers or the order in which the drivers were installed, caused the problem. Unfortunately I couldn't recreate the fault to make sure.



Seeing your other thread, if the power supply is under 1 year old you should be able to claim warranty on it still. Oh and on second thoughts, rather don't use that same model "cheap" PSU in your computer, I've never heard of fans breaking their fins!

It also sounds like there was a ground problem from the PSU, however the 2 faults would seem to be unrelated

Hope this helps

I have the same problem, u cant here it with a normal stereo hooked up but as soon as u hook up a pair of studio monitors its horrible! I have found the cause on my problem..... USB because there is no earth on USB all this crap noise is floating throught it. I however have a USB sound card which I dont think u do so I dont know if this will be any help. But try disconnecting everthing USB and see if the noise goes away? I have just figured this out, my problem now is what to do about it. With no firewire port or exspation slot it looks like im fkt..

Unless there is a device to denoise/ground USB, anyone????

Why is it that I only find this out £1500 later after buying:
HP TX1000
Edirol UA-101
Rubicon R5as

for FAKS Sake!!!

Signed:
A rather pissed off producer