Description of problem: On first startup: Warning: No dictionary is loaded. Please go to StarDict's website and download some dictionaries. http://stardict.sourceforge.net/ It should come with a useful config by default. Version-Release number of selected component (if applicable): stardict-2.4.8-2.fc7
Different language people need different dictionaries, so the stardict package don't contain any dictionaries. You can "yum search stardict" and install packages such as: stardict-dic-zh_CN, stardict-dic-en which contain the dictionary files.
Fixed in 3.0.0 as you can enable network dictionary.