Facebook connect won't work sometimes

Reza,
Looking at the HTML on your page, in the head section is the following line, which is including the Facebook Javascript library:
JFBConnect also includes this library, and does some other things with it as well. If it's included twice, you'll see the sporadic issues that you're noting above. Additionally, it will slow down the overall page load time. Additionally, at the bottom of the page is a bunch more Facebook stuff that doesn't seem to be implemented properly, specifically, look for FB.Init. The first one (toward the top) is JFBConnect. The bottom stuff is missing an AppID (required), and is definitely the problem.

Whatever other Facebook extension your using, please try disabling and I think your intermittent login issues will be solved.

Good luck,
Alex

I believe the Fanbox may be the cause. If you look at the HTML of your page, and search for "all.js", you'll see it's included twice. Once is from us and the other is in the head section using a normal script include. The Facebook library can't be included twice on a page, or you'll get the problems your describing.

If you can, please disable the Fanbox to prevent the double-inclusion of the all.js file from Facebook. You can continue using the other extension if you want (it should work just fine with our all.js file), or you can unpublish it altogether and switch to our JFBCFan module.

Hope that helps,
Alex

The JFBCFan module is fine, you don't need to disable that. I didn't realize that was our module. I just looked closer at the page, and don't worry about that. Our extension doesn't conflict with itself

However, if you look at the source code for that page, something is still including the following line:Whatever it is, needs to be disabled. I don't see any other Facebook functionality working on the page, so I can't narrow it down for you. Something is including that though, and fixing that should fix your issue.