I am having a problem on my new PC with my display lagging or freezing I guess would be they best way to describe it. It has been happening for a few days now and it seems to happen more frequently the long my PC is on. If I'm moving the mouse across the screen it will stop for a split second and then continue. There is a dull crackle in the background of the audio almost like a playing an old record. I have my display/audio through HDMI so I figured it may be a problem with my GPU. Any advice?