TOKYO (Reuters) - Toyota Motor Corp slumped to its first quarterly loss in two years after the March 11 disaster virtually halted production, and the Japanese auto giant warned the stronger yen was hobbling it in the battle against South Korean rivals. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=nTyCuqhLNEE:eQkrpcEVOcA:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=nTyCuqhLNEE:eQkrpcEVOcA:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/nTyCuqhLNEE)