Thanks for the reply PhilC, I am using V4.2 but have hidden wireframe turned on, so the machine shouldnt struggle. Current PC specs are Intel Core 2 duo with 2GB, will be a Core 2 Quad and 8GB by the weekend, but I am not convinced that the Poser scrubber can be smoothed with hardware uplift, even if I heavily reduce the quality of the preview window and turn off frame skipping the scrub is just nasty, particularly if I have the dope sheet open....