As to the camera, there is a ever so slight (maybe .25sec) hesitation, then a smooth scroll. And it gets better when the in view polycount goes down, or shrinks enough to not register in the redraw. The Vue objects all move smoothly, there is a little jerkiness in the imported objects, but those have the bulk of the polygons, and once in motion, the movement seems smooth. Here's some ideas: (1) What version of Direct X are you running? I'm using DX-9 due to game requirements, and have found it to be more stable and capable than DX-8 was. This could be a redraw issue, and since Windows is handling that... (2) I seem to recall something about Win2k-SP3 and WinXP-SP2 introducing some 'features' that actually caused user's computers to operate somewhat slower than they did. If you can roll back to an earlier SP, that would at least clear that issue as a cause. (3) If this was a new motherboard, I would say check the BIOS and see if it has Hyperthreading enabled. That can cause a slowdown in and of itself, and if the chip doesn't support it, then it could really eat your system up. Or be ignored, depending on chipset... The timeline bar isn't a precise tool, even at its best. If possible, it would be nice for E-on to add a couple of windows to the end of it; one that increments in FPS, depending on the render settings, and another that increments in timeslices. That would solve the whole issue, not to mention add extra precision to the animation setup.