Error TB 10

[cdl]

Hi,
someone can tell me how to solve this warning?
This file is a read-only file in Dos. Save under another name.
Carlo - Italy

[Clifton]

Couple of things I would check:

• Examine the list of bound system books to see if system book from previous versions of ToolBook are listed. Generally, you can delete the entire list and it will be rebuilt automatically with current version stuff.
• If you have multiple books open at the same time, this message could occur. Especially if you are using extensions or custom system books that are not marked read only.