Looks like this plugin is using the old deprecated FeatureLoader script
FeatureLoader.js.php
gives this error in the error console:
Error: b is undefined
Source File: http://static.ak.connect.facebook.com/js/api_lib/v0.4/FeatureLoader.js.php/en_US?ver=0.4
Line: 7
And is causing a resize problem in another plugin using the right code.
Here is a post on the facebook platform:
http://forum.developers.facebook.net/viewtopic.php?id=64650
Could you please adjust the plugin to the new FB standards
Tnx!!
http://wordpress.org/extend/plugins/simple-facebook-connect/