Lingoes "capture word on screen" error

ERROR: word which needs translated doesn't automatically appear in pop-up lingoes as choosen

SOLUTION: Right-click on lingoes -->  Configuration --> 'Text Capture' tag --> 'capture word on screen' part: in "mouse activation mode" choose the option as you wish, you can combine with CTRL, SHIFT or ALT by click on it or unclick --> OK

(It is also necessary to check whether Lingoes text capture plug-in is installed or not (in add-ons in firefox case); it might be good idea to check whether lingoes unicode works or not in Control  Panel --> fonts)