lolz, good luck, my gf and I went through a similar issue with our g74, the speaker on the right side used to vibrate like a single engine cessna. After a few RMA's without any luck, I decided to take it apart and take a look myself. It turns out it just has really bad speaker placement on the right side, part of the motherboard actually overlaps part of the right speaker, along with some plastic that I dont really understand why was there, which was hanging down into the fan and heatsink area underneath. I tore out the plastic, then put some thick tape between the speaker and mobo.
Anyways, my point being, we all like to think that our problems will be fixed with an RMA, but sometimes that just isnt the case and you have to take matters into your own hands. Since then, no problems with the system at all, its pretty solid. I hope this is the last time for you and that they fix your problems. :confused: .
ROG Notebooks: G75VW, G74SX, & G73JH And a gaming rig.