One very simple way to fix this is find
#facebook_block .facebook-fanbox {
background: rgba(0, 0, 0, 0);
padding-bottom: 10px;
Then increase the padding to 94px.
#facebook_block .facebook-fanbox {
background: rgba(0, 0, 0, 0);
padding-bottom: 94px;
This will solve your problem.
Hope that helps!
Marty Shue