I've embedded the Windows Media Player. When I load a audio file from a other form(by: wmp.URL = audiofile), the visualisatien shows in a almost square and not 16:9 as the mediaplayer screen is sized. If I load the audio file from the same form as the mediaplayer is on, it works fine and stretches over the whole 16:9 sreen. It's a MDI and non of them are the main form.