I am using windows8, Chrome(stable,latest)

I am newbie at doit.im but i paid today.

I have many events at Google Calendar whose notifications(reminders) are all "1 hour ahead(email)".

After syncing between Google Calendar and doit.im,
notifications of synced events on doit.im is NOT email but popup.

But i will never use pop-up notifications(reminders). I want to use email notification(reminder) only.

How can I do this?
( i did set my email address at "Reminder Setting" but cannot change reminder method)
thanks,