An Illinois First District opinion recently ruled that citation to just one case did not prevent waiver of an argument of unjust enrichment. The court stated there was a failure to discuss the relevancy of the case. The failure to cite relevant authority was a violation of Illinois SCR 341, and the argument therefore was waived. The whole case is here, Fortech LLC v. R.W. Duntemann Co., 852 N.E.2d 541, No. 1-05-1526 (2006).