Hi we have got a bit further with this problem.

 

If we set FlashLoadMode="false" and the client at the office has silverlight installed - the file seems to upload (we can see the temp file being written to).  However - it will not work with flash (temp file is not uploaded and so it crashes at around 20 - 30mb - I'm assuming once the memory has been used up).

Any ideas?

 

Thanks in advance,

Stephen