adding images Javascript:void0 error

New user. I am having trouble adding picture content to my posts. I used to be able to browse my folders, upload a picture to the control panel, then select the picture with a left click and choose the option of sending to editor. Now it won’t work. I can upload the picture, left click the image and get the option of sending to editor, but nothing happens. When placing the cursor over any of the options other than delete, I get javascript:void0. I am using 2.0.5, firefox and EditorMonkey. Any help would be greatly appreciated.
Thanks