A valid connection could not be established

You did not select a valid opponent, so no connection was established

PPC error

The boards will be forced equal to establish the connection

The boards are out of sync;
they will be forced equal

Insufficient memory to do this

Trouble playing sound, sound will be turned off

A sound resource could not be loaded, sound will be turned off

The preferences were not saved correctly

Preferences file invalid/outdated
(don't worry: the default settings are used for once)

The game file was not saved correctly

Processing high level event may have failed

Printing is not implemented

Only one game file can be opened at the same time