Download CSV - Getting [Binary Data]

I am trying to pull down a CSV file from Google Adsense. The problem is that the data doesn't show but instead get [Binary Data]. If I view the data returned in Fiddler it looks good. I upgraded to the newest version 5.5.22a and sitll et a problem. I have a feeling it is because of the content-type in the headers being set to unknown. Below is the full response. Any ideas?

Thanks, Jason

HTTP/1.1 200 OK
Set-Cookie: AdSenseLocaleSession=en_US; Path=/adsense/v3/; Secure; HttpOnly
Content-Type: unknown; charset=UTF-16LE
Content-Disposition: attachment; filename=report.csv
Expires: Tue, 11 Oct 2011 17:44:19 GMT
Server: GSE
Date: Tue, 11 Oct 2011 17:44:19 GMT
Cache-Control: private, max-age=0
X-UA-Compatible: chrome=1
X-XSS-Protection: 1; mode=block
Transfer-Encoding: chunked
X-Content-Type-Options: nosniff
Set-Cookie: AdSenseLocale=en_US; Expires=Wed, 10-Oct-2012 17:44:19 GMT; Path=/adsense/v3/; Secure; HttpOnly
X-Frame-Options: SAMEORIGIN

[Binary Data]