Help with parenting?

If I have a camera parented to a cube, and when the cube rolls over how do I make it so that the camera does not roll with the cube?

Vertex parenting. choose the camera and the Cube, then press TAB, in edit mode, choose vertex display mode, then CRTL+ LMB click in the center of the cube. Then CTRL + P and select the vertex option!

Oh ok thanks tarakunsama