The last time I remember, my yahoo calendar and contacts were in sync with my galaxy nexus phone, but now all those entries are gone in my phone. I didn't do anything except that I proceeded with the ICS update to 4.0.2 the other day when the notification appeared. I tried to manually sync (Settings > Accounts & Sync) several times but to no avail. Do you guys encounter this problem.. and have you managed to fix it? Appreciate very much your inputs!