Are these "other firms" using Survcad by any chance?
I often have this problem with Survcad files. Running Flatten first seems
to help. Of course you have to re-elevate the contours then. Overall a
real PITA.
--
Doug K
LDT 2005, XP Pro 2002 sp2, P4 2.40GHz, 1 GB RAM, Dual 19" Dell LCD, NVIDIA
GeForce FX 5700LE, Left Handed Kensington Trackball, Happily Married
w/Children
wrote in message news:5104746@discussion.autodesk.com...
We get files from other firms that have property lines with a vertex at big
negative numbers. Modify the negative number to 0 & the line disappears.
The same thing happens with edit contour elevation from big negative to
correct elevation. Contour poly line vanishes.
Anyone have any ideas?