On a conference call with work so I had a few minutes to launch Firebug to see what's going on. Looks like a conflict with XenPorta redirecting the default the "index.php" route.The bad news is that I'm seeing the same results. The good news is that Bejeweled gives the same results so that means it is something about your installation rather than how you configured the game manually. I'm thinking a possible conflict with another add-on. Mind updating that PC you sent me with a list of what add-ons you have installed? I'll try to duplicate one of my test sites with the same list.Register an account and I'll promote you.
I'll have to load up XenPorta on a test site to see if I can come up with a work-around.