I am unable to login from the forum index. The popup window doesn't work when you click the icon. It works fine from the OCN frontpage. Please see attached screens. Using current version of google chrome on windows 8.1. I tried with browser extensions disabled with no change.
This was resolved as caching setting were configured to make a less detrimental impact. The site (Due to cloudfare) is set for performance mode for those who are logged in, when logged out the site will not reflect the same due to how the caching is set up. VS moved their portfolio to cloudflare fairly recently and performance issues were being worked out.