voRia wrote:It's the first time I see this error... and it should have nothing to do with "Samsung Tools".
Are you sure the hotkey you want to use for webcam is not already used by another application (which probably triggers that error)?
NOTHING was ordered to that key combination (Fn+F3). It was not the Samsung Tools' fault, but Samsung scripts'. Some hotkey definitions without ordered commands remained after I've upgraded from Karmic to Lucid and replaced the "Scripts" by the "Tools". I found them through gconfig-editor (eg. /apps/metacity/global_keybindings/run_command_5: <Alt>KP_Insert). After removing such empty hotkey definitions everything works fine as well as the rc.local line suggested by you.