


Especially if its still under warranty.It is possible to play sound through your computer speakers and headphones at the same time and such a setup can be helpful in certain cases. You need some one who knows what they doing when opening up a notebook. If that's the case you will need to take it in for repairs. Now if after all this troubleshooting it still persists it has to be hardware related.

Make sure that its its 32bit or 64bit your installing. Otherwise choose the right driver from Toshiba website. I cannot recall this ever being an issue with Win7.

Some issues are cause by the updates having bugs but usually you should be able to roll back the actions by doing a system restore. Allot of issues are caused by failure to keep your PC regularly updated. If you don't already have them on automatically. I find that OS usually picks up best drivers and software in Windows Updates.
