I installed NIS 2012 two days ago and, since then, IE9 has not been working correctly. I am now unable to log in to certain secure websites, unable to open links that open a new tab, and unable to download certain files. The NIS add ins to IE9 are disabled. I tried clearing out the browsing history and the temporary files. I tried disabling NIS 2012. Nothing solved the problem.
I am running Windows 7, 64 bit version.
How do I solve this problem and return IE9 to normal usability again?