I was having trouble posting on a website, fairly new -- always had no problem. I decided to look in the blocked sites and Restricted Sites in Internet Options to make sure I had not blocked some site that helps with logging in, so I checked the source code of the website to see if one was listed and I found this in the source code:
In the Sites list under the Privacy tab, I have this WEBSITE on "Always Allow". I checked the "Custom level..." under the Security tab, Restricted Sites icon, and it shows:
Active scrpting: Disabled
Scripting of Java applets: Disabled
Would any of these fix the problem if switched to "Enabled"? Or is there some else I need to do?