Downloading PDF will not open, must save

Hi,

Response.Clear();

Response.AddHeader("Content-Disposition", "attachment; filename=" + oFile.Name);

Response.AddHeader("Content-Length", oFile.Length.ToString());

Response.ContentType = "application/octet-stream";

Response.WriteFile(oFile.FullName);

Response.End();

The problem here is when a pdf is to be downloaded, it will not open directly in the browser. You must save the file first and then you get a new dialog asking you if you want to open the file. Other file types work correctly, only PDF's are causing me grief.

I noticed when downloading a word doc, the Open dialog option was not displayed. Is there anyway to force the display of only Save or Cancel. This problem will create many support calls.