Certain programs (including Colleague) require pop-up windows to be enabled. To Enable pop-ups in Google Chrome for Windows, follow the following steps.
To allow all pop-ups, scroll down to the Pop-ups section and click the radio button next to "Allow all sites to show pop-ups."
Allow pop-ups from certain sites
To allow pop-ups from certain sites, Click on the radio button next to "Do not allow any site to show pop-ups" and then click "Manage Exceptions."