Not found: few images

Hi and thanks for this great module!

I use Drupal 6.2 and Super Nav 6.x-1.0.

Watchdog - These images are not found, but they are in that location:

sites/all/modules/supernav/images/tool-icon-info.gif
sites/all/modules/supernav/images/tool-icon-settings.gif
sites/all/modules/supernav/images/tool-icon-refresh.gif
sites/all/modules/supernav/images/tool-icon-minimize.gif
sites/all/modules/supernav/images/tool-icon-bookmark.gif
sites/all/modules/supernav/images/search-icon.gif
sites/all/modules/supernav/images/tool_expand.gif
sites/all/modules/supernav/images/tool_contract.gif
sites/all/modules/supernav/images/tool-icon-help.gif
sites/all/modules/supernav/images/close-small.gif

Thanks for any help.