Some further information.
Copied other projects from the same CD and another that was created at a later date.
Checked files to confirm they did not retain read only status from the CD transfer.
Query profiles in other projects and the elevations are off by a strange factor.
Undefine profile and then re-define, information in the definition block is correct.
Grid elevations are now consistently 0.63 higher , this occurs in each project. All projects are in metric units. When checking FG tangents correct information returns. Try to draw a new tangent and elevations are off by the 0.63 elevation difference.
Undefine the profile , erase all entities , re-sample , create full profile and all is well.
I can see this happening for one project but it is too strange to be occuring consistently.
Any suggestions would be appreciated.
Laurie , I have swung the axe on this problem and fear the next blow should be aimed at myself.
This has been a strange weekend.
Wayne