problem with attachement

[ravermeister]

hello, i have a problem with image attachement.
i have send an mail from yahoo to my postfix.
the attachement is a 1,3 MB jpg. with squirrelmail, i can download it.
but when i try to download it with roundcubemail, i see the binary data of the image.
i have tried the stable version, and the svn checkout. both give this error.

what can i do?

thanks for now for your help.
regards jonny

[JohnDoh]

are there any errors in you RC error log?

have you checked the FAQ http://trac.roundcube.net/wiki/FAQ