Blackmagic Design Desktop Video is the driver that is required in order for Livestream Producer and Livestream Studio software to recognize video inputs coming in through a Blackmagic capture device. If you are having an issue seeing your camera source, it could be an issue with the current version of the drivers you have installed.
If you currently have an older version, you must first uninstall that version and then install the recommended Desktop Video version.
**IMPORTANT**: At this time, we recommend that Livestream customers download Desktop Video version 10.8.4.
Go to http://www.blackmagicdesign.com/support and select Capture and Playback.
Scroll down and you will find the latest versions of Desktop Video. Click either Mac or Windows, depending on your system.
You will be prompted to register. This step is optional. You may skip it by clicking 'Download Only' in the bottom left corner.
When the download is complete, click the folder to start the installation process.
Follow the on-screen steps, then restart your computer.