Report showing data only when preview in Eclipse is executed

Hi people,
I intend to do a dynamic report sending two parameters and displaying on browser.
My application runs under Coldfusion 9 and i'm using Java Reporting Component for report generation and Crystal Reports Design for Eclipse 2.0 for design and Oracle 10g database.
In first preview it shows the parameter window and after confirmation the report is generated. But when i preview again the report is generated with the older data. It seems that the data in the first execution is cached.
In Coldfusion execution the report appears in browser when the value on the line parameter.setCurrentValue("","Pessoa",value); is the same used in preview. After change this an generic exception Error loading JDBC driver. Class 'oracle.jdbc.driver.OracleDriver' not found is throwed.
The Coldfusion code is below.
<cfscript>
     byteRead                    =     '';
     exportFormat               =     createObject('java','com.crystaldecisions.sdk.occa.report.exportoptions.ReportExportFormat').PDF;
     reportBuffer               =     createObject('java','java.io.ByteArrayOutputStream');
     reportDocument               =     createObject('java','com.crystaldecisions.reports.sdk.ReportClientDocument');
     reportParameter               =     createObject('java','com.crystaldecisions.reports.sdk.ParameterFieldController');
     printOutputController     =     createObject('java','com.crystaldecisions.reports.sdk.PrintOutputController');
     connInfo                    =     createObject('java','com.crystaldecisions.sdk.occa.report.data.ConnectionInfo');
     reportPath                    =     expandPath('report/DividasPessoas.rpt' );
     reportDocument.open(reportPath, 0);
     parameter = reportDocument.getDataDefController().getParameterFieldController();
     parameter.setCurrentValue("","Credor","1");
     parameter.setCurrentValue("","Pessoa","226426");
     printOutputController = reportDocument.getPrintOutputController().export(exportFormat);
     reportDocument.close();
     do{
          byteRead = printOutputController.read();
          reportBuffer.write(byteRead);
     }while( printOutputController.available() NEQ 0 );
     reportBuffer = reportBuffer.toByteArray();
</cfscript>
<cfheader name="content-length" value="#ArrayLen(reportBuffer)#" />
<cfheader name="content-disposition" value="inline;filename=Report.pdf" />
<cfcontent type="application/pdf" variable="#reportBuffer#" />
I googled a lot about the problem, reviewed all Eclipse options to disable the "cache" but everything was unsuccessful.
I don't know if missing code is causing this or another component that i need to use.
Any suggestions?
Thanks everybody for attention and sorry for english errors.
Ian

Hi,
Regarding your query that when you preview a report that has parameters in it, the prompts daillog box comes when you first preview the report.when you again preview you get the old values again.
For this there is a refresh button, click on refresh, it will again promt you for parameters.
Thanks
Prithvi

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