I'm not sure if this is a bug so I thought I'd ask folks and see what they had to say.
I have some export links on a page, and despite me not using $.remote or $.history (I use $.click) when a user clicks on these export links in IE, if they use the browser back button afterwards, it tries to re- do the export. I'm not exactly sure what to do about this. I've looked at my code and looked at the plugin code, and nothing jumps out as me as the cause of this issue. Firefox handles it beautifully.