@woland (and Mark)Thank you for correcting this!I would like to add an information: I have been able to correct similar issues with "spots" in Max/Jitter by forcing textures from "char" to "float32". Would there be a way to do something similar in Isadora?Thanks!Best wishes,jbb

I bit the bullet, sold the Z820 and am going to stick my current 5960x workstation into a 4U shorty case with a 1080 and assign it double duty as a render node and traveler workstation. While less portable than a laptop (I work 99% of the time in Toronto), I have become increasingly interested in (obsessed with) Isadora and think this change will make for a very sizable change in performance. Thanks again @DusX for the information you shared. 

@michel it's odd - it was set at 1280 x 720. I'm still getting the aliasing when I set the shader to a low resolution. It's tough to find that balance of a clean dither and a lo-res look.