[mod_python] Problems with req.content_type and req.sendfile in IE, but Opera/Mozilla works.

Hi.

I need a workaround for the Internet Explorer browser as this code 
doesn't works:
%% snip of my psp-code %%
    fpdf = PDF_PATH + "/" + "pdf.pdf"
    req.content_type = 'application/pdf'
    req.sendfile(fpdf)

%% end of snip %%

Yes, it works in Opera, konqueror, and Firefox, but not in Internet 
Explorer.
There has to be a workaround for this? There are some companies that 
never will follow a standard....

Cheers,

Ole J.