NEW YORK - Two weeks after acting erratically at a New York Knicks basketball game, fashion designer Calvin Klein has announced he is seeking treatment for a drug problem. A spokeswoman for Klein, 60, would not specify the type of treatment he will receive. In 1988, Klein entered the Hazelden Institute in Minnesota for alcohol and prescription drug abuse. "For many years, I've been able to successfully address my substance abuse issues, which for anyone is a lifelong process, through strict adherence to counseling and regular attendance at meetings," Klein said in a statement. "However, when I recently stopped attending...