I am getting this error too. The window opens fine, and lets you select a draw method. I get the error after I have drawn the image on the screen and release the mouse button. I believe it has something to do with the geometry permissions, everything looks fine in that area though so far. I will continue to search. In the mean time, any help with this error would be appreciated.The regular draw still works fine for us. We are running ArcServer 10 with Flex 2.5 using the eDraw for 2.5.