I installed the latest sound drivers, and reverted to the last gfx drivers directly from asus. (as opposed to the ones on the nvidia site) And both problems seem to be fixed... Who knows... just hoping it lasts.
My first problem is choppy video playback, which as it turns out happens no matter what player I use. It's not terrible, but it's very distracting and is starting to bother my eyes. My computer should be more than capable of watching a video file with choppy playback. It happens on all video file ty...