I upload a picture and after the upload finishes it seems to be automatically inserted twice in my post, see here please: http://screencast.com/t/IeVRliVjVjm 

and then, after I delete on link from the post and post, it tells me: [Image Can Not Be Found] but I can click and view the picture !? 

this plugin is active: File Uploader (using Plupload)