Facebook recently added some styles to the Like and Share button that caused this, but it should be resolved in the latest JFBConnect v6.4 version. If you're still having problems after upgrading, please let us know.
If you don't want to upgrade, the following are the CSS styles that we added in our /media/sourcecoast/css/jfbconnect.css to fix this:
.sourcecoast.facebook .fb-like > span,
.sourcecoast.facebook .fb-share-button > span,
div.scsocialbuttons .fb-like > span,
div.scsocialbuttons .fb-share-button > span{
vertical-align: initial !important;
}
-Melissa