Asp.Net: Html to Excel problem with some clients

[Spacy]

I have 2 hyperlinks. On the click of first hyperlink, ExcelReport.aspx is
executed which contains the code:
Response.ContentType = "application/vnd.ms-excel"
Response.AddHeader("content-disposition", "attachment;
filename=Report.xls")

After this code, i write all the response.write statements that generates
the html table. The Excel Report is saved perfectly. The page does not output
anything on the screen. No problem till here!

Now when i click on the second link, Report2.aspx is called which contains
code to generate the second html table and output it on the screen. In debug
mode, every line of code is executed. But the screen is blank. The new html
table is not displayed.

THE INTERESTING PART:
This behaviour is exhibited only by certain clients. I get this problem
while testing on the web server. But on certain clients, the second html
report is displayed perfectly---even after saving the first report in excel
!!!

Anyone who knows why this happens ??? Please help !!!

Thanks in advance.

Regards,
Spacy