I don't know if anyone else does animation, but at the bottom of my animation Palette, there is no Keyframe Scroll bar. I don't know if this is something with my computer or with Poser 8.
All my other Posers editions have it at the bottom. From 1-60 frames it doesn't matter. But my animations almost always run between 120-300 frames. Guesing wrong where it is makes it jump somewhere else in the keyframes, then you have to reguess where the scroll bar is again to find the last location.

I ask this is because I had some other problems that was not a poser promblem but my computer acting up. But the scroll bar never shows up under the animation Palette.