The user’s computer may not be set to allow access to Denticon’s website. To ensure Denticon.com is recognized as an accepted, trusted site:
Open Internet Explorer and click on Tools / Internet Options.
Click on the Security tab.
Click on Trusted sites.
Click on the Sites button.
Ensure that sites are listed as a trusted site:
*.planetdds.com
*.denticon.com
If the Denticon site is not listed, remove the checkmark from the box at “Require server verification (https:) for all sites in this zone”. Input the web address in the “Add this Web site to the zone:” field, and click the Add button to add the address to the “Websites:” listing box.
Replace checkmark in box at “Require server verification (https:) for all sites in this zone”.
Click the Close button.
Click the OK button to save the setting information.
Additionally, check if the pop-up blocker is blocking any new windows from opening. If you are not sure, hold the CTRL key and then click on Scheduler icon or try switching offices. If this works fine, then the office definitely has a pop-up blocker. Change the user computer option to allow pop-ups from denticon.com.