When I open a file, in the editor, containing a package body and spec, it opens up everything into one editor tab, instead of splitting it into two tabs as I have checked in the options. Under the File Splitting - Opening Files section of the options window, I have "Automatically split files when multiple objects separated by "/"" checked and file splitting is not working.
There is a problem when migrating files over from v9.7.
WORKAROUND:
Rename the Toad.ini file, located in the C:\Documents and Settings\<User>\Application Data\Quest Software\Toad for Oracle\10.5\User Files directory, to Toad.ini.OLD. Make sure Toad for Oracle is closed when doing this. This will reset all your settings.
STATUS:
Waiting for fix to be included in a future version of Toad for Oracle.