No RePaint in ListView since .net 2.0

Question

Hi, I updated my application to framework 2.0. If WinXP Desktop Styles are enabled, my listViews aren't updated/repainted. Moving another window above my application, the listView gets updated. IF WinXP Styles are switched off, everything works just fine. This occures since framework 2.0 and VS 2005. Can anyone help? Thanks.