NIS2012 Won't re-install to Chrome-Missing extension

I had successfully used NIS2012 in Chrome. However, lately, I get a plugin crash that makes me disable NIS. Once disabled, the browser works fine. I'm using Chrome 19.0.1084.52 m. I tried uninstalling NIS and reinstalling. Will work in IE9, but does not reinstall in Chrome. There is no extension or toolbar visible, and it does not fill in any logins now. What am I doing wrong? Help!

 

Windows 7 64 bit.

 

Thanks,

 

Bill