AutoCAD 2007/2008/2009 DWG Format

[#1]

Your paperspace content has a Z height, why?

Your modelspace TARGET and EXTMAX variables list a Z elevation that matches
everything you 'chspace' over there.
Have not had the time to figure out why with your partial file.

--
Dean Saadallah
http://LTisACAD.blogspot.com
Add-on products for LT
http://www.pendean.com/lt
--

[#2]

thanks guys yes that seems to be the problem.
The question is why and how can I change the two read only system variables : "TARGET" and "EXTMAX"
Maybe it may have something to do with the UCS?
Russ

[#3]

EXTMAX is part of the 'extents' of your drawing, an indication you have an
object there. Zoom All usually resets it if nothing is there, force a
REGENALL perhaps.

TARGET refers to a UCS coordinate referencing that point I believe, not sure
how you reset that one.

--
Dean Saadallah
http://LTisACAD.blogspot.com
Add-on products for LT
http://www.pendean.com/lt
--

[#4]

Did you ever figure this out? I have the same issue. I notice that if my viewport is not twisted then it will not do it. Have you found this to be true?

[#5]

I know it has been a long time since this question was asked but I found out the solution. I just started using chspace and it was driving me nuts that Z values kept getting added to everything. You need to display your drawing in a front or side of whatever 3d view you want. Zoom extents. Find everything with Z values and get rid of the Z values. I had a couple blocks that had Z values.

Thanks,

Russell