After two days of searching for an answer in the web, i finally found what's wrong:
I had some missing plugins that had to be installed,
if anyone interested:
I first pressed "Help->Install new software",
at the Install dialog i pressed the "Add..." button.
in the "Add Repository" dialog i typed something as name and in the "Location" input box i typed: " http://download.eclipse.org/tools/cdt/releases/juno " and pressed OK to install.
so now there's another strange problem
it won't resolve the "cout" command, but it still prints output to the console (at the bottom).
I searched for the unresolved inclusion ("Project->Index->Unresolved Inclusions") and you can see in the right window at the picture what's missing.
where do i get these missing files from, and how can it prints to the console if "cout" cannot be resolved?
I'm so, very tired.