Also

* Symantec Corp. sued Microsoft Corp., accusing it of misappropriating trade secrets to develop its own competing features and products, including the next version of Windows.

* IHOP Corp. said Chief Executive Julia A. Stewart, an IHOP director, has been appointed chairman of the Glendale company’s board of directors. Stewart succeeds IHOP’s former chairman, Larry Alan Kay, who will remain on the board as lead director.