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I'm displaying a map chart with bubbles at metropolitan areas indicating metrics - the bigger the bubble, the larger the metric. Each bubble is a <movie>. I want to display a different metric when the user selects a different radio button. This works great when the data changed is in <area>s. But when <movie> data is changed (specifically, title, height and width). the change doesn't affect the display. I do a setParam('area.color_solid', '#223344') to refresh the <movie>s. The disadvantage is that the map flickers.