Samsung TS-H552U tray problem



Hey guyz, my Samsung TS-H552U has been giving tray problems since quite sometime. I have noticed that Samsung optical drives have tray problems more than any other drive(s). The tray does nt slide out when the eject button is pressed. Ihave to use the pin everytime to open it. Also when there is media in the drive the drive opens without any hassles. Why is it so?? Is there anything that i could do to solve this problem?? Any of you who have also faced a similar problem plz post replys if any or suggest other measures. 10X in advance. :confused: