OGDEN -- In 1991, Dennis Leavitt thought he was invincible. Then he was diagnosed with HIV."March 28, 1991," he said. "It's a date I will never forget. I went into the West Hollywood Gay and Lesbian Counseling Center to get my test results, which I figured were going to be negative. The counselor sat me down and told me I was HIV positive. I felt like the floor had just fallen out from under me."