Installing a graphics card - Did I do it right?

[Bingy]

Ok Ive just realised the the expansion slots at the back(the empty ones with the metal plates in place.) are secured at the back (motherboard side.) with a clip that kinda hooks on to the outer case area. But my graphics card that is installed doesnt have a clip that secures it to the back. Is this normal? It has some diagram thing graved into the metal part but dont know what its suggestion. I have a ATI Readon 4850 sapphire dual slot.

 

[OmegaStalker]

its fine just plug your cable in...