I must admit I'd not thought about replacing my XP cursors (although, probably like most, I have the vista fonts on my normal machine) so I did it yesterday.
It was all pretty until this morning. When I remote desktopped into my XP box and the cursors were barmy! Duplicated cursors, the hand grab cursor underneath an arrow cursor, really slow mouse movement, and all fixed by going back to System 3d White.
Quite weird!