Windows 7: Line In Dialog when Tray Volume Icon is Clicked

This problem started just last night, I was working on changing the three audio jacks into 5.1 surround outputs. After I was done, anytime I clicked on the normal volume icon, either right or left click, it pops up the "Line In Properties" dialog.

On left click, it also shows the normal volume adjuster, but hides it after about 2 secs, preventing me from sliding to adjust volume. I am also inhibited from opening the Playback Devices, Recording Devices, and Sound options that show up with a right click of the icon.



As it is extremely frustrating to have to navigate through the Control panel every time I want to change sound levels, I am hoping someone can help. Thanks in advance!

Calamari

Well, a little more changing of sound options shows that if I change my mic input (which the L/R Surround channel in 5.1) back into the Line In designation, the pop up problem is gone. I guess since I don't use 5.1 often, this is an ok fix, but if someone can fix it completely I would be much obliged.