|Try this. Shut down the computer and open the Drive tray using a medium Paper clip, partly straightened. There is a small hole in the front for the Paperclip.|
Gently pull the Drawer all the way out by pulling in the front, center of the door. Gently push the Door all the way closed, till it latches, then restart the Computer and try the door Switch.
Always use the switch to close the Tray, rather than pushing on the Tray till it closes.
There is nothing to learn from someone who already agrees with you.