Teamviewer Installation Hangs

[TJ80]

I had Teamviewer ver.11 installed and was trying to upgrade to ver.12. The upgrade got halfway through and just sat there for hours. I stopped the installation and tried again. Same issue. I then downloaded the ver.12 file straight from the site thinking the upgrade was bad. Same issue. Then rebooted computer and did all the above...you guessed it, same issue.

Googled the issue and followed several instructions including installing older versions...same issue, however, when I click on "More Details" during installation, it is blank. I have left all installation attempts going for hours on end and they all have hung up half way through.

Please help.

[TJ80]

Forgot to add that this is on Win 7 Pro and here is a screenshot of the installation window.  I have let it set for over 24 hours. http://i.imgur.com/7e2oXWJ.png