i have 2 calendars--a yahoo and a gmail. gmail syncs and shows up just fine. ever since i upgraded to OS 6, i cannot get my yahoo calendar to sync. i have deleted my yahoo account off my phone and re-added it just like it says to on the website. i am usually pretty tech-savvy, but i cannot for the life of me get it to work. my yahoo calendar is fine on the website. HELP HELP HELP! this is where i keep all my life!