With Mac OS X 10.4, if you use the List feature in TextEdit to create a list, it's possible that some or all of your list content may disappear after saving and reopening the document. Update to Mac OS X 10.4.1 or later to avoid this issue.
When this happens with Mac OS X 10.4, your list may be truncated or missing. This can happen with rich text documents (those with a .rtf or .rtfd file extension) and certain combinations of lists and font choices.
You can create a TextEdit List by clicking the Lists pop-up menu at the top of a TextEdit document, or from the Format menu, choose Text, then List.
Important: If your TextEdit document list is missing or has been truncated, please note that the content isn't actually gone; it's just not visible to you. However, if you save the document again, the invisible information will indeed be lost.
For example, if you create the following list in a TextEdit document in Mac OS X 10.4...
The best way to avoid this issue is to not use the TextEdit List feature in Mac OS X 10.4 until you've updated to Mac OS X 10.4.1 or later.
Tip: You can remove all lists from a TextEdit document by choosing Select All from the Edit menu, then selecting None from the Lists pop-up menu. Please note that this doesn't recover lost text, unfortunately.
Again, you can avoid this issue by downloading and installing the Mac OS X 10.4.1 Update, or later, from Apple Downloads.