Butt glazed corner window

[joesolano]

Hello I am just getting started with Home Designer architect 2014 and have been having a tough time figuring out how to model a butt glazed corner aquarium window similar to the one shown in the picture:

http://www.houzz.com/photos/114681/c...ng-room-austin

I can't seem to get the window glazing to butt up against each other in the corner of the 2 windows without a wall getting stuck in between.

Thanks
Joe