Herman,
Success! I installed the 6.0.6.7667 driver and the popping noise is gone. I had to go into the Realtek Audio Manager (Control Panel) to re-activate the headphone jack. Everything seems fine. I had first installed the video driver from AMD, but it looks like they added a lot of programs to the system. Since I had also tried so many drivers, etc (before I contacted you), I think I'm going to do a reset of Windows to clean out the extraneous apps. Then I'll reinstall the 6.0.6.7667 driver. Hopefully, then I can begin to enjoy the computer!
I used to be a mainframe developer/manager, and I think you are one of the best analysts I have ever known. You are excellent. You spent so much time and effort on my problem! Is there someway I can express my gratitude to Microsoft management? Also, it would be nice if I could rely on you again for any future problems! If you don't mind and if you are on LinkedIn, I'll send you an invitation. Thanks again for all of your help!
Dave