We have found that some firewalls or web-shield software may cause issues with the screenshots. This type of software can cause a LOT of the functionality of Hubstaff to not work, like the screenshot capture; for example. One of the symptoms to be experienced are blank or black screenshots. All past occurrences have been caused by some web-shield or anti-virus software such as mcafee; for example. We found that a software called Webroot and VirtualBox may trigger this behavior. We suggest you uninstall or disable any type of identity shield software in order to show screenshots correctly.