I have a problem with this plugin, when I click on the like button it pops up the share and post to facebook box and then in the same second dissapears and a confirm button takes the place of the like button that still needs to be pressed in order to make the "like" happen by the user. Please view my site on this page here to see it yourself,
Take note though that I did leave my facebook App ID blank since I do not have a developer account in this plugin's settings.
Also i have found this problem to occur on just about any facebook like plugin i have downloaded over wordpress, so it seems the problem may lie innately on my wordpress theme or php coding. I find even if the problem wont occur at first, it eventually will when i do something different no matter what it is, like post a new page, or reorder the pictures of an album, etc.
I am currently using wordpress 3.7.1