I've had this problem since adt2005 and now again in architecture 2008 when dimensioning in paper space. When I pick 2 ends of an object I get a crazy dimension. Like 125'-3" . But the true dim. is lets say 4'-0". It doesn't matter if I use 1/4" 1/8" 1/6" anything I use I get a crazy dimension. If I just put a dim in. And then pull it's endpoints to the object it's ok. Now to make matters worse. If i move the viewport at all. All the dims. go back to that crazy number. to fix it I have to drop a dim in. and match properties. What could be the problem? And has anyone else have this problem? It doesn't do it all the time. That is another mistery.