Which boxes should I check on the Calendar app to avoid duplicate entries? I sync Outlook from my desktop to Google Calendar to the Evo calendar. Which should I check or uncheck? OK, nevermind: I found the info on p. 54 of the EVO manual. I guess I need to sync the PC Outlook first with Google Calendar and then sync with Evo and check only the email username (the red bar item). A bit confusing.