Bubble

I am implementing the month calendar and have it working with the exception of the hover bubble.
I am getting both my custom bubble and the default bubble.
How do I disable the default bubble from appearing.

I am using MVC 4
below is the Razor page that is calling the calendar.

<h2>Schedule Month</h2>
@Html.DayPilotBubble("bubble", new DayPilotBubbleConfig());

@Html.DayPilotMonth("dpm", new DayPilotMonthConfig()
{
BackendUrl = Url.Content("~/Schedule/MonthBackend"),
ContextMenu = "menu",
EventBubble = "bubble",
//CssOnly = true,
CssClassPrefix = "calendar_silver_",
EventHeight = 25
})