did you definitely rebuild the curves - as in, did you use the rebuild curve tool? it may be that your curves are facing different directions - so try the reverse curve tool, tho from your first picture, it doesn't look like that.
If that fails, try starting that section again from scratch.
in any case, it looks like you are trying to build a large section when you should probably break it down into smaller pieces.
Last edited by arran; 10-10-2008 at 12:08 AM.