It’s Mentor Graphics Corp’s turn to receive one of those nuisance shareholder lawsuits: the Beaverton, Oregon company says the complaint seeks an unspecified amount of damages and alleges that the company and some of its officers withheld material adverse information from the public between April 20 and July 3 this year, on which date it advised the investment community that second quarter revenues and earnings would fall short of previous expectations; We have been advising our shareholders since 1989 that the near term outlook for Mentor Graphics was uncertain due to both economic and technology transition issues, said chairman Thomas Bruggere; In addition, Mentor Graphics is a company which has always followed policies and procedures that are even more rigorous than those required by the securities law; we therefore believe this complaint is without merit or foundation, and we will defend our interests aggressively.