Using a Presario CQ62, running windows 7
If I enable my audio (Realtek High Definition Audio- driver:RTKVHD64.sys- Version 6.0.1.6037) my computer begins to slow down/stall, it independantly mutes and then turns the sound back on (repeatedly), and also independantly goes full screen (on my keyboard the mute button and f11 are the same keyboard key). Externally there is nothing wrong with that key.
Thank you for your help.