Olá, estou alterando um arquivo do .jrxml de um relatório e quando compilo exibe o seguinte erro:
  Compiling to file... .\relContasReceberGeral.jasper -> C:\Program Files (x86)\JasperSoft\iReport-1.3.1\relContasReceberGeral.java
Errors compiling .\relContasReceberGeral.jasper.
 net.sf.jasperreports.engine.JRException: Error saving expressions class file : C:\Program Files (x86)\JasperSoft\iReport-1.3.1\relContasReceberGeral_1306282187416_48837.java     at net.sf.jasperreports.engine.util.JRSaver.saveClassSource(JRSaver.java:171)     at net.sf.jasperreports.engine.design.JRAbstractCompiler.getSourceFile(JRAbstractCompiler.java:304)     at net.sf.jasperreports.engine.design.JRAbstractCompiler.createCompileUnit(JRAbstractCompiler.java:278)     at net.sf.jasperreports.engine.design.JRAbstractCompiler.compileReport(JRAbstractCompiler.java:168)     at net.sf.jasperreports.engine.design.JRDefaultCompiler.compileReport(JRDefaultCompiler.java:105)     at net.sf.jasperreports.engine.JasperCompileManager.compileReportToFile(JasperCompileManager.java:127)     at net.sf.jasperreports.engine.JasperCompileManager.compileReportToFile(JasperCompileManager.java:109)     at it.businesslogic.ireport.IReportCompiler.run(IReportCompiler.java:535)     at java.lang.Thread.run(Unknown Source) Caused by: java.io.FileNotFoundException: C:\Program Files (x86)\JasperSoft\iReport-1.3.1\relContasReceberGeral_1306282187416_48837.java (Acesso negado)     at java.io.FileOutputStream.open(Native Method)     at java.io.FileOutputStream.<init>(Unknown Source)     at java.io.FileOutputStream.<init>(Unknown Source)     at java.io.FileWriter.<init>(Unknown Source)     at net.sf.jasperreports.engine.util.JRSaver.saveClassSource(JRSaver.java:163)     ... 8 more 
Compilation running time: 58
Estou alterando as cores deste documento de acordo com as cores do sistema e quando salvo o arquivo e mando exibir o relatório ele exibe a versão anterior.
Como faço para corrigir isso?
