quarter earnings to miss forecasts on lower-than-expected sales volumes in its packaging and printing businesses. Shares of International Paper fell 1.9 percent to $31.84. Shares of Myogen Inc. plunged 23.3 percent to $5.37 on Nasdaq. The biopharmaceutical company on Sunday said it will terminate development of a drug for patients with advanced chronic heart failure after tests failed to show any statistically significant benefit. Apple Computer Inc. shares fell 1.6 percent to $37.16 on Nasdaq. Weekly financial newspaper Barron's said the company's iPod music player could face growing competition from advanced cell phones. Walgreen Co.'s stock rose after the top U.S. drugstore chain reported stronger-than-expected quarterly profit. Shares of Walgreen gained 3.9 percent to $46.10