Megabite"]On the left you ca see the brush is colored cyan. That may indicate that the brush has func_door or anything applied to it. Thus it is no solid brush but a leak.
Try to delete the brush and redraw an solid brush in its place.
But why are you encapsulating the whole map with a hollow cube anyway? If there are leaks and you try to contain them with such a container it will still have an impact on performance and is no good style either... :cry:
Danny
Ok I managed to fix it by deleting entites from the list that I thought I had deleted. So... am I right in thinking that deleting the brushes making an entity wont actaully remove it, I have to delete it fro the list aswel?
The reaason I was making a big cube around the entire map was that I was experimenting to see how skyboxs work, unable to find any info anywhere, but I did discover how it actaully works now, and the cube is gone :]
EDIT: also.... in gtkradient 1.5 how can i select the entrire func_group? somebody on #tremulous told me but sorry i forgot.