OpenRoads (Geopak) End-Area Volumes problem

Hello,


I am having a problem with my corridor design surface not showing up in the General area of the End-Area Volumes tool.  The exisitng surface is listed but the corridor design surface is not however, the components of the corridor do show in the list.

I did scroll down in the list to see if design surface was there.

Anyone have any quick advice?  The dgn file is over 10 mb so if someone needs the dataset I can send.

TIA

Geopak ver. 08.11.09.722

MSV8i ver. 08.11.09.608