On my IS-10 the orange and black audio jacks are switched. Go into the Control Panel, double click the Sound Effect Manager icon, click the Speaker Configuration Tab and click the appropriate No. of Speakers. Then click the Speaker Test tab and see if all the sound is coming out of the proper channels.It appears as if the audio jacks are miscolored,i have tried several combinations i went to realtek and downloaded
there latest drivers and now i have some sound at full blast with a set of 4 in 1 creative speakers i can barely hear anything,so i tried my headphones and u can hear very little audio mostly hissing.