Hi guys i got a problem in my fallout 3 and FNW......(I use windows vista)by some days when i open the game the main menu is totally mute,when for example i moove the mouse on the various options and actions without clicking,I don't hear any sound,plus the Pip Boy is Totally mute as well,when pressing the bottoms,clicking in the various sections,passing the mouse trought objects.....nothing produces any kind of sound,and when i recharge the sound looks like far.....whis problem hae compared in Fallout 3 and Fallout New Vegas,once they worked perfectly,options are perfect,what should I do?