I already voted for other artists like a week ago with my main email address
I'll vote with my other email address for Ayu's SEASONS because I don't like Dearest.
[EDIT] Voted for SEASONS, Mika Nakashima's Yuki no Hana, Mai Kuraki's Love, after after tomorrow and Every Little Thing's Time goes by (not on the list). I voted for Morning Musume's LOVE MACHINE (which is currently #1), Ai's Sakuranbo and aiko's Kabutomushi last time. Using my other email address worked perfectly for me. I changed IP from last time I voted and cleared all my cookies...