Js Script error instead of image in wysiswyg 5.x-05 and image assist 5.x-1.7 combination

I am using Wysiswyg API 5.x-0.5 and Image Assist 5.x-1.7 in a 5.i4 drupal site and keep getting the error below each time I try to insert an image.
The image is uploaded but will not insert. In my research I saw only solutions for 4.x and 6.x. What to do?

uncaught exception: [Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIDOMNSHTMLTextAreaElement.selectionStart]" nsresult: "0x80004005 (NS_ERROR_FAILURE)" location: "JS frame :: http://www.igboezue.com/sites/all/modules/img_assist/img_assist_textarea.js :: insertToEditor :: line 90" data: no]

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