I have been having an issue with the plot planning window since my guild won the auction.
Instead of the outlines of buildings I get a rather ugly brown wavy screen --
http://www.championsohonor.net/plotwoes.html
Is that happening to you as well? While I don't wish this on someone else, it would help me to know I'm not alone.
I have submitted a ticket regarding this (and the crashes while working on plot) on 10/12/04. I got a response that the crashes were fixed, then I crashed again. I submitted a debug log on two occasions. I am still waiting on a response to the issue of the planning window.