dimunit

#1
Hi,
I'm running 6.1.19.
If I create a new drawing and change dimunit to 6, then save, close and reopen the file, dimunit is now 4!
Therefore everytime I open a file and go to setdim, I have overrides that I don't want to save.
That is a bit annoying.
Any ideas?
Thanks.

#2
I have uninstalled and re-installed icad.

I've placed a file at www.15medium.com/2.dwg that demonstrates my problem.

When I closed the file there were no overrides. The dimstyle I'm working with is called '2'.
When you open the file and go to setdim there will be overrides. The first is under the units tab where it will want to use architectural stacked. The file was saved with architectural (not stacked). The second is under formet and text palcement. I saved the file with the third option, 'over the dimension line, without a leader'. OPening the file wants to change this to the first option 'beside the dimension line'.

Finally if you insert this little drawing into another drawing, the dims are changed to dimstyle 'standard'.

I don't think I've had this problem until just recently. Any help greatly appreciated.
Thanks.