No problem for the trouble. If you even suspect our extensions are part of a problem, feel free to come to us first
As for this being caused by JFBConnect, if you disable the JFBCLogin (or SCLogin module) and the JFBCSystem plugin, you can easily test. Those 2 extensions do the brunt work of JFBConnect, and disabling them is similar to uninstalling the extension. If things start working when you do that, definitely let us know.
One oddity I did notice at the time was that the Business Directory menu did have scrollbars. Not sure of other pages, but it may have just been the home page. I just checked again (Chrome on Mac), and did see scrollbars.. it's a different computer than I tested earlier with, so not sure if you changed something, or it's the different comp.. but looks like it's working now for me.
Best of luck,
Alex