Hello,
Here is an animated gif from the nights 18/19th and 19/20th September 2006. I have marked the positions of Eris with the dates to prevent confusion with the dashed trail of the other (as yet unidentified) asteroid (the dashes cover the period 12:41am to 01:34am AEST on 20th Sept).
http://www.iceinspace.com.au/downloads/Dennis-Eris.gif (WARNING: 400K)
Thanks again Mike, for providing this upload facility to share these larger files.
Dennis