Before You Migrate to Leopard
 
A bug in Mac OS X 10.5 (“Leopard”) can prevent some older Notebooks from opening or displaying correctly on Leopard.  Specifically, if you created Notebooks using NoteBook 1.0, or ran NoteBook 1.0, 1.1 or 1.2 under OS X 10.1, some of your Notebooks may be affected.  Before migrating to Leopard, you can check the format of your Notebooks by opening them on your existing Mac running OS X 10.4 or earlier.

When you open a Notebook on Tiger, NoteBook checks its file format and lets you know if it needs updating . Be sure to back up your Notebooks before updating them.

NoteBook will not display a message if a Notebook does not need updating.

If you first started using NoteBook with the 2.0 release, your Notebooks should open OK on your Mac running Leopard.
 
 
IMPORTANT

You cannot update your Notebooks if you have already upgraded to Leopard.  If you have a Notebook that does not open correctly on Leopard and you no longer have access to NoteBook on a Mac running Tiger or earlier, please visit http://www.circusponies.com/support for assistance.
 
You must use NoteBook 2.1 (v262) or higher to update your Notebooks.  Earlier versions of NoteBook do not perform the check and cannot update your Notebooks.