OK - I have had the latest High Definition Audio Codecs - R2.27 installed on my Toshiba Satellite U300-113 - Core 2 Duo T5450 1.66 GHz -Realtek ALC268 for a while now. It does some strange things, and is totally unreliable. The souncard seems to just be totally lost when I bootup sometimes, it doesn't show in my audio config or in its usual place in device manager >> sound cards etc it is now showing under system devices - and the driver info is not showing - please see attached screenshots.. I have uninstalled & reinstalled the R2.27 software (however there is no Realtek interface that I can run - is this normal?) I have uninstalled & reinstalled - I have disbaled and re-enabled..I have run the troubleshooter - all with no change. There is no audio device being found. I am pretty clueless how to take this forward, and what else I can do? anyone else having major hassles with this?