I'm sorry for my bad English - I'm from Russia.
I have FreeBSD 7.1 and RoundCube 0.4 beta from ports collection. When I press attach button (both of two) I have no results: no errors in php log, apache log. ''safe_mode'' in php.ini is Off. For example plugin ''forwardattachment'' works fine - I can send email as attachment (I can see them and can delete attachment via button). Plugin ''vcard_attach'' works too. Can anyone help me?