Regarding the audio, it looks like you are currently on 2.7.2 firmware is that correct? Try updating to the latest 2.8.1:
Regarding the blurry image, if it is the same effect that other users have reported, I believe that is likely to occur again in the future, based on other user reports. Troubleshooting has only ever produced temporary results in dealing with the blurry/doubled ghost image. Unfortunately those have eventually required replacement.
Is this the first time you have noticed the screen image issue?