Nice. thanks tbworld. I ended up going with the 0px 0px 0px to remove this line completely.
The spot where the red line appeared after editing the .userprof_editor line was right below this gap (see attached).
I was able to remove a wide strip beneath the tabs that was taking up a bunch of space by editing the userprofiles.css code here:
HTML Code:
.memberprofiletabunder {
background-color: #2E3539;
background-image: {vb:raw module_background_image};
background-repeat: {vb:raw module_background_repeat};
But it left the black gap below it as indicated in the red rectangle. If I can fill this with the background color #2E3539...