Quote - ... but first I want to delete the keyframe that is causing the camera to rotate around the figure when I  move the  animation slider ............

The way Poser automatically keyframes everything all the time is just exasperating. Any half-decent animation program should let you specify what you want to keyframe.

It helps minimize the nasty surprises if you turn off animation on all cameras and lights in a blank scene and then set that as the preferred state in prefs. Then if you really want to animate a cam or a light it's easy to turn it on.