I've had a G75VW for a couple of months now, and I've been absolutely loving it. This is the first problem I've ever had with it:

I just left the house for about an hour, leaving the laptop on while I ran a Norton system scan. When I returned, I found that the built-in speakers now make a horrible buzzing sound every time a sound plays. I can still hear the sounds (Windows system sounds, video, music, whatever), but with this horrible crackling buzz at the same time. The sound is fine when listened to through headphones, and I've never had the specific sound problems (like with the subwoofer) that some others have reported with this particular model, so I'm scratching my head here. Could the speakers just be broken, or is there something obvious that I'm overlooking? Any thoughts would be appreciated; I'm not a noob by any means, but I'm nowhere near an expert when it comes to dealing with computers (which is why I bought this pre-built!).

Perhaps I should also add that I've looked at the drivers and they seem to be up to date, and I have, of course, done some cursory checking on google but couldn't find anything specific to exactly my problem.

I've gone into the sound settings to disable the subwoofer and tinker with the sound and bass levels, but it makes no difference to the buzzing. I can tell that the buzzing is the speakers themselves, by the way, not, for example, the fans or something vibrating. The buzzing is only when a sound is playing, and I can clearly hear the buzzing from the left and from the right speakers themselves.

So, I'm inclined to think they're just broken or torn at this point, but I'm confused as to what could have happened - like I said, they were working fine before I left the house, and the laptop went untouched until I got back. I seriously doubt that Norton could have done anything, but it was the only activity done by the PC at the time.

Anyone have any thoughts, or should I look into my warranty/repair options?