Well, I have to thank Lynn once again for figuring out my problem. He has the same webcam on his computer and experienced the same problem, awhile back. After playing with it for a over a week, he came in while I was attempting, yet again to fix it, and asked if I had plugged it directly into a USB port instead of the hub. Well, no, I hadn't tried that.
Well, guess what? It worked! So now I'm able to broadcast once again.