Plane Problem

 From:  BurrMan
2884.3 In reply to 2884.1 
THat is the "Underlying Surface" that Michael had spoke to you about in a few threads back regard how nurbs work. Try selecting all the edges of that surface and deleting them and see what happens. THis is the "Trimmed Planar surface" that you created

[EDIT] Foiled again by that MoaI Guy! [EDIT]