Sound level not balanced with speaker box

Hello , recently my sound began to act weird. I think this is the problem of my Audio Drivers... When I do not install any driver , I have to push up my sound to the highest on both the PC and Stereo tower to get some decent sound. Normally I only need 10% to get the sound I have now at 100%. When i install the newest Realtek Audio Driver, I get almost no sound from the left box , and i get only 50% of what my right box is capable of. And no this is not the fault of my stereo , because when I use earplugs , I get the same result...Please , can someone help me?~

ok , i might just fix my own problem , but i cannot find the config file for the Realtek HD Audio Manager :eek: Can someone point me out where it is?