the drive tray of my 360 keeps on opening by itself. When you put a disc on it it will close for 2 seconds and it will open automatically and it will not even attempt to read the disc. It happens to every disc. and if you close the tray manually or using the eject button same thing happens even without a disc inside, it will close for 2 seconds and it will open automatically. the only way to close it is to unplug the power cord while it's close and don't wait for 2 sec. or else it will open again. However I did find out that the drive can still play a game because to my dismay i tried to pry the tray to close it with a disc inside and i manage to play a game it works for all the disc except for original dvd game however it's so noisy and I don't want to pry the tray everytime I want to play.. Help?????