My Beats Audio no longer works

I have a HP Envy 15 3040nr notebook PC running Windows 7 64 bit.

Every time when I hibernate my laptop, I can not close the laptop lid, or it will report CPU overheat. When I start Windows after the so-called overheat, the sound always loses and I found a solution here 

http://h30434.www3.hp.com/t5/Notebook-PC-Sound-and-Audio/HP-Envy-15-3040nr-Sound-Stopped-working/td-p/2673061

For several times it worked perfectly, but this time when I followed the same step, the sound did go back, but the Beats Audio is lost.

When I touch the volume knob on the side of laptop, the icon changed from the Beats Audio icon to this , which shows that the Beats Audio is disabled.

However, the Beats Audio settings icon in the taskbar displays correctly, and the settings of Beats Audio works.When I move the faders, the sound effect does change, but the little box of Beats Audio never works. When I click on, no sound change happens, and when I close the settings window and reopen it, the box shows unclicked again.

It seems that Beats Audio is installed correctly, but not functioning. I tried many different versions of the IDT audio driver, but all of them have the same problem.