Laptop to router, router to my first F16V3, then from there to my second F16V3. Both have an expansion card. The sequences set at 20FPS run ok. I get the turtle only when changing songs. When my 40FPS sequences run, I get the turtle about every other second. I did run through Keith's video already. It's an older laptop, but already optimized, no anti-virus (not connected to internet, nor is it wifi enabled.) no screen saver, no power saver, stripped down bare so no tasks running. Like I said, it's just the 40FPS sequences, and you can tell in the display it's a little jumpy when it happens, especially on my MT (16x50, 800 nodes, 4 ports) and Matrix (32X64, 2,048 nodes, 8 ports).