You built computer for a friend and afraid to put a sound card on the machine to test?
Seriously, I NEVER has problem when swapping sound card, modem, nic, video card. If you know how to do it, nothing go wrong.
With XP, there is SYSTEM RESTORE.
With Windows, there is something call HARDWARE PROFILE.
And if you really **** UP the PC, there is something called LAST KNOWN working profile.
Reading thru the WHOLE thread, NO ONE (exclude yourself) say greenman should refund. Almost EVERYONE said swallow it and move on, but I said,25 bucks for a lession in life if ******* CHEAP.
After all this bull****, do you thing anyone want to sell you anything? And if they do, anything they sell to you will be AS-IS instead of some warranty to other members.