So...here are some websites I think are helpful.
Wikipedia's article on the subject.
Some relevant points here: Darfur is primarily Muslim. Civil war appears to me a more accurate description than genocide, and it appears the militias of Darfur fired the first shots in the Eighties, and were egged on by Chad.
This blog gives some very good reasons the conflict IS NOT a genocide, and also some reasons people may have for drawing attention to the conflict.
I'm not saying that any of this is completely beyond dispute. I'm just saying that there has been a LOT of mischaracterization in this forum.