After clicking Record in the top left hand corner of Camtasia to launch the Recorder, the editor minimizes but Recorder never opens.
Try running Camtasia as admin by right clicking the Camtasia shortcut and choosing "run as administrator".
-make sure CamtasiaStudio.exe and CamRecorder are not running
-click Start and type regedit. Hit enter to open the registry editor.
-browse to HKEY_CURRENT_USER\Software\TechSmith\Camtasia Studio\9.0 and delete the 9.0 folder.
-try restarting Camtasia and see what happens
Go into your task manager, find Camtasia Recorder 9 and end the process. Then try starting recorder again.