I’ve searched here and find only very old posts, and not specific to my issue. Posted similarly yesterday, but in the wrong place – sorry.
In Linux (Fedora 15) when I edit the application bar to add Arduino, the little icon shows up there, but when the Arduino link is actually ON the task bar, there is only a red circle with a slash through it (indicating- icon not found, I would guess). The link works fine, but looks ugly.
If this is something I (we) can fix in some file, could you let us know –
where the icon is located and
the name of the icon file and
what file we can check to find the problem.
I know it’s there somewhere or it wouldn’t show up in the application bar editor.