Originally Posted by metin
I took off all my jumpers, not knowing what I was doing.
Should I put them back?
YES! Put the jumpers back where they were. Jumpers are used to "manually" switch settings on the motherboard. It would be good to get your manual out and read what each jumper setting is and what the LEDs are for. If you don't have one you could give the manufacturer's website a shot.
As far as your sound issue, it may have to do with drivers. It would be a good idea to look up the sound card (or integrated model) and download the most recent drivers for it.
I'd also like to be clear on whether both the image and the sound freeze/loop or if it's just the sound.