Seems to be related to layered windows in xp (AllowTransparency = True), more info in the links: http://social.msdn.microsoft.com/forums/en-US/wpf/thread/d55786cf-032b-4ba3-a998-48f5a59edad5/
Seems to be related to layered windows in xp (AllowTransparency = True), more info in the links: social. msdn.microsoft. com/forums/ en-US/wpf/ thread/ d55786cf- 032b-4ba3- a998-48f5a59eda d5/
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