i've got some red text on a white background with a slow creep forward. when viewing the final render the edges seem to jump. my guess is that the size difference from frame to frame is very little and it jumps from one pixel to the next... and red on white doesn't help either i think
You can try to add a de-interlace blur to your text.
Johnny Cuevas, Editor
"I have not failed 700 times. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work."
---THOMAS EDISON on inventing the light bulb.