Invisible?

[Casper]

haha sorry for alreading posting another help topic. but i made a map, started with a big hollow block with some passages off to the side. it all looked good, and i selected everything and put it all in the same texture just to take away the annoying red white and blue thing. When i went to test it, all the brushes that made the middle room were invisible, but i still couldnt walk through them. does anyone know whats wrong?

[Blake]

That happens if you have brushes overlapping. Check to make sure that all your brushes don't intersect with another.

[Casper]

K I'll check that when I get home. Since I have the feeling I'm gonna have more questions, I'll post them here from now
on instead of making a new topic