It sounds like your camera is a two-node camera. In the camera settings, change it to one-node and it should work the way you're used to.
If it is two-node, you can also use the Camera XY Tracking as well to do that right?
The only difference is that with the two-node camera you have added the Point of Interest, and the camera will always point at that. The point of interest can be very useful for some things, but if all you need to do is dolly and pan the camera around, then it is easier to do without it.