BinaryWrite, IE And Adobe Reader 6.0

I'm having some problems with the Reponse.BinaryWrite, IE 6.0 and Adobe Reader 6.0. When I try to write a pdf-file to an IE browser with a Adobe Reader 6.0 installed then it just displays a blank page and the earth on the top rigth corner keeps turning like it haven't read the pdf-file (for 10+ minutes on a lan).

If I change the settings on the Adobe Reader 6.0 to not open in a browser, then it works fine. If I use Mozilla 1.4 then it opens fine as well.It works fine as well with Adobe Reader 5.1. The code looks like this:

[Some code that places the pdf-file in a byte array called vntStream]
Response.Clear
Response.ContentType = "Application/pdf"
Response.BinaryWrite = vntStream
Response.end

I have tried to place a Response.Flush after the BinaryWrite, but it just makes the Adobe plug-in say something like "document corupted".