I am having a problem with DNN 4.8 fck image preview:

1. Click edit Text on Text/HTML module
2. Click on Insert Image icon. Image Properties box shows.
3. Click on Browse Server
4. Click on an image ... Nothing Happens
5. Minimize the window and I can see an error dialog:
"An error has occurred in the script on this page
Line: 51
Char: 1
Error: Object expected
Code: 0
URL: http://mywebsite.com/dotnetnuke/Providers/HtmlEditorProviders/Fck/FCKeditor/editor/dialog/fck_image/fck_image_preview.html

Do you want to continue running scripts on this page?"

6. Click Yes or No - it doesn't matter
7. Same error shows up again.
8. Click Yes again - and it takes me back to the Image Properties with the correct image previewed and everything fine.

I am running DNN 4.8 on GoDaddy. I have another separate web with the same version and that works fine.

Any ideas what could be causing it? I searched the forum and on the web but can't find someone with the same problem

Thanks!
alex