When I try to install an application, I see an error message stating that I do not have sufficient privileges.
To install an application in the Applications directory, you must be logged in as an Administrator. If you can't log in as an Administrator, try installing the application in your Home directory instead.
If this doesn't work, you might have to log in as root to install the application.
To get additional help, see "Logging In As Root," p. 206.
When I try to run an application's installer, Classic starts up, but is unable to install the application.
If a Classic application won't install under Mac OS X, reboot in OS 9.2 and run the installer from there.
When I try to open a document by dragging its icon on top of an application's icon, the icon doesn't highlight so that it will open.
This happens when you try to open a document for which the application is not recommended. You can force it to open by holding down the Option+ keys while you drag the document's icon onto the application's icon.
You can also associate an application with a document using the document's Info window.
I opened a document, but what appears onscreen is a bunch of gobbledy-gook.
This happens when you open a file that contains data that the application can't interpret. Use the Info window for the document to associate a different application with the document; using an application that Mac OS X lists as a recommended application will make it more likely to open successfully. You can also try opening the document from within an application rather than from the Finder.
I inserted a special character from the Character Palette into a document, but the character that appeared wasn't the one I selected.
This can happen if the application you are working with does not support the Mac OS X font and formatting tools. The most likely case is that the format information you associated with the character, such as the font, was not translated into the application properly.
To solve the problem, use the application's formatting tools to apply the same font to the character as is selected in the Character Palette. The symbol should then appear just as it does in the Character Palette.