Shuttle xpc SB65G2 sound issue's

[k-slick]

I recently just bought:
2 SB65G2's
2 intel p4 3.2c
2 nvida 6800 gt's
2 lite on dvd sohw-1673's
4 kingston 512 valueram
2 western digital 80gig WD800JD
2 Windows xp pro sp2

2 identical machines, each one when speakers or a head set are plugged into the front or rear jack make a realy bad sqeaking noise when i use a roller on the mouse in any windows bases window or if click and drag a window it sounds like a bug zapper,

In games like SWG or EQ2 when i have my inventory open, it makes a shuttering sqeaking noise.

I've tried 5 different brands of speakers and head set's,

and 3 different brands of mise

i've tried the drivers from www.shuttle.com and the drivers from www.realtek.com.tw

Q: has anyone else had this issuse?
How did you fix it?
do you have any suggestions i might try?

Thank you for your time
-k-slick

 

[shoes]

I had sound problems with my ST61G4 and i ended up buying a cheap sound card which totally fixed the problem, and now i have badass sound