Does anyone know why my new Gateway 700GR has a constant hiss in the background of it. I tried doing everything the Gateway website told me to but it just didn't work, even when i turn the sound all the way down there is still a slight hiss. The hiss gets slightly louder when i open a program or put in a cd or something like that. Is this a normal thing? Mind you it's not a loud hiss, but it's enought to annoy my ears, my Mac didn't hiss like this. The hiss shows up on the speakers, and on my headphones, and stays if i turn the speakers off. Any insight would be really great.