Hi all

I am writing a document with these caracteristics:

• 427 pages
• 23 chapters
• Most chapters have second and third sub-sections
• Some of the chapters were imported from another document

As I was ready to send it I created a table of contents and I suddenly realized that the last 3 chapters were numbered incorrectly:

• chapter 20 is numbered 1
• chapter 21 is numbered 2
• chapter 22 is numbered 1

and the sub-chapters are numbered accordingly.

I tried many tricks to put it straight to no avail.
I deleted the last 3 chapters (after making a copy) and created a new heading after the #19: it was correctly numbered 20. So I copied the contents of the chapter 20 but the numbering of the sub-sections remained the same.
Obviously the numbering is attached to complete text of the chapters because whatever I do it remains numbered the same way.

I couldn't find the feature that allow to chose the incrementation of the chapters.
I am rather nervous because I need to transfer my doc ASAP.
TIA
Regards
Nick