I'm running TurboCD Mac Pro v8.0.8 build (1167)
1) Location of "View Definition" setting - Menu:TurboCAD Mac Pro 8/Preferences/General/View Definitions Box, with choice of "Default" or "Aerospace". I tried to change it for one of my drawings, but discovered it applies to the whole environment, and impacts all files.
2) What it does - "View Definition" affects the 'handedness' of the three axes, and redefines the direction from which you view the drawing with Menu:View or cmd-1 / cmd-2 / cmd 3. The only info in the manual is one sentence: "Changes the definitions of side and front views to reflect mechanical or aerospace design conventions." (HOW does it change those definitions? That's left as an adventure of discovery for the user...)
3) When the problem started - I tried "Aerospace" but didn't like it, so I changed the settings back to "Default". That's when the ugliness appeared.
4) Bad behaviors - For that drawing, and also on a different drawing that was done originally in "Default" (that was open when I changed the settings), I'm now back in "Default" and:
a) Origin and triad displays on the screen are still oriented as they should be, but when I select the Translate tool and type in values for motion along axes x/y/z, the translation occurs on a different axis, and SOMETIMES in a different direction:
+ entry in X's box moves object in -Y direction
+ entry in Y's box moves object in +Z direction (yes, different from the other two; +/- is NOT reversed!)
+ entry in Z's box moves object in -X direction
b) Oh, and now dimension text appears upside down, and I mean right there in the view I'm using to add the dimensions, as soon as I click the second vertex!
Anybody have any ideas?