vertical dimension view

Hello,
I have aproblem in understanding the orientation of the text in vertical dimension.
With my Ubuntu-system the orientation is 'read from right side'.
Because of some problems with freezing system I did an installation
on a win7-system.
There it is different -orientation is 'read from left side'.
Loading a file from the ubuntu-system with win7 'rotates' the text of the dimension.
I can not find any preferences to change the behavior.

Thank you for any explanation!
Dietmar

just to show:

dim_test_ubuntu.dxf
dim_test_win7.dxf