Description: It seems to be a static bumpmap or shadow mask that looks like it was once statically used on the globe when/if it didnt move at some point. Can kind of make out an outline of a continent over the spinning Earth.
Location: At the screen where it says "connecting to login server" or "retreiving list of chars", this graphical glitch is on the lower left portion of the screen. it covers about an 8th of the total screen in that lower left area where the globe is.
Reported Ingame: Not yet, but when server is back up, it will be.