[Tobago] FileUpload from popup supported?

[Michael Kakuschky]

 Hello, I use a form in a popup to submit some data. It worked fine 
until I add the tx:file component to the form.
If I submit the form with a file selected  I receive the data but it 
seems that it corrupts somehow the memory and I got some strange Java 
exceptions about (existing) methods that can't be found.

If the file upload is supported can somebody give me a basic example and 
maybe tell me which attributes have to be set and which maybe not?

KInd regards Michael