Hi, On a Windows 2008R2 (64 bit) server ireport 4.1.1 works correct. Now I installed ireport 4.1.1 also on a windows 7 (32 bit) system. Both systems read the jrxml source files from the same mapped network drive w: The "Test" button in the Connections/Datasource window shows me that the database conection works correct. On the new installed windows 7 system I get during the "Preview" in ireport the next error message. Compilation running time: 6.772! Filling report... Locale: English (United States) Time zone: Default Error filling print... Chart theme 'Graph_test_Xldoc' not found. net.sf.jasperreports.engine.JRRuntimeException: Chart theme 'Graph_Test_Xldoc' not found. at net.sf.jasperreports.charts.util.ChartUtil.getChartTheme(ChartUtil.java:166) at net.sf.jasperreports.engine.fill.JRFillChart.evaluateChart(JRFillChart.java:794) Has someone an idea what the cause of this problem may be. Kind regards.