I replaced my clutch and now it wont go into gear?

1991 Acura Integra LS 2 door 4 cyl. I replaced my Clutch, Throw Out Bearing, and Pressure Plate. I have it all put back together and with the car not running I can put it into gear. But I start it and the car makes a winding noise thats like the clutch and pressure plate are not releasing away from one another. What could be causing this? On this car you must press down the clutch before the car will start and that works.

DeeAnn Kauhi
January 2011