I am creating a workbook in a Struts action and streaming it to the browser 
using the following snippet:

// execute the ExcelQuery and write the results to the stream
	if (excelquery != null) {
	
	HSSFWorkbook wb = excelquery.getWorkbookSQL(user, messages);
	ServletOutputStream stream = response.getOutputStream();
	String fileName = selectedQuery + ".xls";
		
	response.setHeader(
			"Content-Disposition",
			"attachment; filename=\"" + fileName + "\"");
	response.setContentType("application/vnd.ms-excel");
			
	wb.write(stream);
	stream.flush();
	stream.close();
	return (null);
     }

The user sees a File Download dialog that allows them to Open or Save the 
Excel file.  Either choice works GREAT in W2000/Office2000, XP/OfficeXP, but 
causes an Excel error in Win98/Excel97 SR-2.  The error says: EXCEL caused an 
invalid page fault in module EXCEL.EXE at 0177:300fa329.  If I take the 
offending xls to another computer, XP or 2000 can open the xls just fine.  I 
can save the xls back to the Win98 pc and open it normally in Excel97.  I will 
attach an example (when I figure out how) of an xls that I can't open and the 
same one after it has been opened/saved using Excel XP.

Any assistance would be greatly appreciated!  This is a critical project.

Thank you very much,
Kendall