Why do sheets copy inconsistently when copying sheet tabs?

I copy a sheet once and the copy is OK.

I copy the original sheet a second time and the border and viewport are misaligned on the copy because print configuration has reverted to "NONE".

A third copy has the same problem.

I have tried, unsuccessfully, to upload a .dwg file to illustrate this.

[User of DS (Free) V1R2 on Windows 7 Home Premium.]