I am using the latest DNN 8.0.4 Xmod Pro 4.7.4. I have seen this before but cannot remember what the cause was. Anyway, captcha works in all browsers except IE 11. Frustrating.

Now, I have another existing install with the same versions. The only difference between the two is, the one that does not work is a fresh install where the existing has been upgraded many times and works in IE.

Using the IE debugging console turned up nada. Help!