Topics Map > Collaboration > Blackboard Collaborate Original
Blackboard Collaborate Ultra - Sharing desktop from single screen using Chrome
Chrome users must select the image of their desktop when attempting to use application sharing to share the entire desktop, even if the user only has one screen. Otherwise, the Share button will appear greyed out and unavailable. The vendor, Blackboard, provides a document that describes the effect in more detail and with screenshots.
More information about sharing content is available from the vendor.