A change to CallScripter 4.5.51 to provide performance enhancements has embedded required java script in the controls that use them, rather than running when not required. If you have upgraded from 4.5.50 or earlier, you may find that:
Controls that are visible in the script editor do not display in the agent desktop
Controls display in the agent desktop, but are missing display elements.
This is because the campaign retrieval plugin has stopped and must be restarted. On restart, the list of available campaigns may be unavailable for up to two minutes whilst campaign data is retrieved.