Hi,Specs:CPU: i7-5700HQGPU: GTX 970MRam: 8gb1TB HDD & 128GB SSDThis brand new laptop arrived today; I noticed that when plugging in headphones (I tried many varieties) there is a quiet high pitched screeching sound. It seems a lot like EMI because it varies when the power cable & usb-mouse cable are plugged in. The buzzing never goes away, just changes in pitch/pattern when various cables are in or out.I would jump to the conclusion that it is EMI, however I haven't found a single other person on the internet who mentions this issue. Its incredibly offputting I can't see how it went through reviews unnoticed. Has anyone had a similar experience with a Gigabyte laptop (or this model)?