A note from the MetaPost developers: We have noticed an incompatibility between the latest MetaPost v1.003 and the graph package. Severity is considered high, since it prevents compilation of even the most simple figures. The problem is identified and a fix is under way. A workaround is not possible. Users of the graph package should not update to MetaPost v1.003. MetaPost versions 1.002 and prior are not affected. Best regards, Stephan Hennig On behalf of the MetaPost development team