denon DL 304

The cover of the Denon DL 304 is very loose - this is the underneath side with the words DL 304. So when the stylus guard is in place and you want to remove it this protective cover also starts to lift off. Before I ask Denon about this, has any else had the same problem? The cartridge had beeen off the turntable for some time with the stylus guard in place and now I don't want to use it until I have clarified the situation.