When reviewing the preference manifest file of Safari 4, the text descriptions of the preference settings may not be displayed correctly: If you are using PrefEdit to open the preference manifest of the Safari 4 web browser, the textual descriptions of the entries will always be displayed in English even if you are running PrefEdit in a different language. The shown descriptions might also contain internal control characters, e.g. a backslash character in front of each comma (“\,”).
Workaround: This is a known defect of Safari 4. Update to Safari 5 or later to fix this.
Mac OS X Snow Leopard can cause a crash in PrefEdit when displaying a preference domain of an application immediately after changing that application's icon: When you have replaced the standard icon of an application by a customized icon, and you are using PrefEdit to review the preferences domain of that application a short time later, PrefEdit may quit unexpectantly.
Workaround: This is a known defect of Mac OS X Snow Leopard which can affect all applications that ask the operating system for icon data. When you have customized an application icon, the system's database of installed applications might not update its internal copy of the application icon immediately. Before the system has “learned” the updated icon, an internal conflict may arise when other applications ask the system for the affected icon and erroneous image data for that icon will be processed. This can lead to a indirect crash in applications (like PrefEdit) which are displaying icons of other applications in their user interface. As a workaround, log out and log in after you have customized an application icon and need to use PrefEdit afterwards.