I am facing a strange problem...I am unable to make the volume keys work i.e. No Volume bar is visible when the keys are pressed. the keys however work for other tasks like zooming-in and Out in MicroB also while using these keys in Someplayer it works for changing track but doesn't work when used for changing Volume. Volume levels work perfectly when controlled from within the application(like Media player etc.) But doesn't work when the keys are used.....I have tried the remedy suggested in this thread but No success...can someone please help me with this......