Hi folks,
Classic Desktop version 3.531 was just released:
Download | CyberTracker Wiki
It contains a minor change to ensure that the CyberTracker desktop main window is on-screen. When presenting using a laptop, users may move the window to a separate screen and CyberTracker remembers that. Then when restarting and no longer presenting, it could be invisible. The fix is to verify that the window is not out of view.
Cheers,
-Justin