Unable to check emails when starting openDNS

When I start openDNS, I have faced some problems in browsers. I set this in two or three computers and I am facing the same error with the following computers. The problem is I am unable to check my emails. Most of the drop down menus is not working. I have tried many browsers; I uninstalled and reinstalled JAVA, and reset all the changes in my previous browser. But the problem is still the same.
