**update: The issue is resolved when ONLY running on battery (ac adapter unplugged). Hey guys, I have an HP Pavilion DV7 laptop... The volume slider keeps turning itself all the way down, even as I try to turn it up. Its been happening for a while now. I've tried: 1.) Completely removed everything attached to the MOBO, only the LCD, DC Jack, RAM and HDD. Issue still persists 2.) Same as above only added battery, and unplugged the ac adapter and ran off battery. Issue is resolved. 3.)Plug power back in the issue happens again. I tried many combinations of removing and adding hardware components and they all have the same result. 4.) I update the drivers, then uninstalled and download new drivers. Installed the software and disabled the software. The issue persists 5.) Tried updating windows and then disabling the sound software along with HP Smart software. Issue persists. 6.) installed a new HDD and clean installed windows 7 with only the provided drivers. Issue persists 7.) Replaced the Sound/Smart Media Power panel. Issue Persists 8.) Changed the RAM. Issue persists. 9.) Disabled the sound devices in the "Sound" control panel. Issue Persists. 10.) Flash the BIOS, already has the newest revision so I re-flashed it. Issue Persists. 11.) Tried switching AC Adapters. issue persists 12.) Changed DC Jack & AC Charger. Can't think of anything else it could be! Anyone have any ideas? thanks!