hey, i have a problem with the export. i took a video. somebody in front of a greenscreen. i made chroma keying and key smoothing, and added a background. clicked on "project" and "mediamixer" that was the vid i wanted to export. under the video i clicked that button with an arrow on it. ok im in the export window. i browsed, clicked wmv and then on export. choosed "best quality for broadband" and enter. and when i click enter, i come back to the export window where i browsed!