I've been doing some stuff with Jed lately, and I was doing Brian's beam tutorial, and once I get about halfway through if I open up 3d preview, I've got these holes in the floor and ceiling surface that appear, even though they aren't there in Jed. If I finish the beams, the ceiling hole disappears, but the floor one remains. What's the deal with this?
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![http://blargh.mine.nu/test/4/7.jpg [http://blargh.mine.nu/test/4/7.jpg]](http://blargh.mine.nu/test/4/7.jpg)
![http://blargh.mine.nu/test/4/6.jpg [http://blargh.mine.nu/test/4/6.jpg]](http://blargh.mine.nu/test/4/6.jpg)
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I have a signature.
I have a signature.