Thanks. Bold ?! first time ? a new 'concept' in HFS...

Actually it raises a more general issue of the standard (in this software and in general) of indicating to the user that an item is being selected.
I believe that you have to distinguish between two cases: a multiple selection-list-options (like start/exit list) and a single choice - one-of...
I would consider to use the same method for each case - check-marks for multiple choices and bold for the second (BTW - I like radio buttons more...).
SO why not change & use it all around ? IP list, flash task-button, tray-icon-show etc... this way the user can anticipate and understand better . What do you think ?