I've messed around with this a bit more but I can't seem to get it to work no matter what I do. If I upload the file to DropBox then go to dDropBox to load it via the web page, I'm told that they can't determine the type of file. If I try to upload the exact same file from my PC, it works a charm. I don't have to do it from DropBox though.
Just wondering if anyone else has that issue with uploading files via the USB adapter to web pages.