QUOTE(DanCBradbury @ Nov 30 2005, 08:40 PM)

Well, i'm getting around the problem by moving the retro way off the center line, and into the middle of one of the quadrants. The lines are still present... but i at least i dont have to see them.
What happens if you use a single huge patch for the ground plane, the way the default choreography does? Have you tried adding Porcelain to the grid you're currently using?
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Error reports aren't supposed to generate answers. They go into the Hash database of bugs, and the Hash team tests, prioritizes and fixes them as their schedule permits. It's not like calling tech support.
Fah-wha? Then what's the use in sending in an error report?

It's how the Hash team finds out where the bugs are. If you really want them to respond to a bug report, you'll have to do some of the work of determining what causes it, by submitting sample data and steps to reproduce.