The problem is still actual. Pls, did someone encounter similar issue?

I have the same issue too, I assume it happens on user login via bridge.

joomla 1.0.12 (UTF-8)
smf 1.1.4
jsmf 2.0.2.1
CB 1.1

Hi all.
I have the same problem with attachments.

Joomla version: 1.0.12 (converted UTF-8 version)
SMF version: 1.1.4
Joomla-SMF version: 2.0.2.1
Community Builder 1.1
PHP version 5.2.4
MySQL version 4.1.22-standard
Joomla and SMF are installed into the same db, SFM is in separate /forum/ Joomla sub-folder on server.

I have SMF running in 'Wrapped Integration Mode'=NO in Joomla. Everything works fine except the attachments in posts. They are corrupted in posts but they are fine on server.

I found one interesting thing....

If I try to download them using current link like:
_http://_myserver.com/index.php?option=com_smf&Itemid=30&action=dlattach;topic=2.0;attach=27
the attachment is corrupted and it's unreadable (jpeg can't be viewed) locally after download.

But if I try a bit another URL like:
_http://_myserver.com/forum/index.php?option=com_smf&Itemid=30&action=dlattach;topic=2.0;attach=27
I can download correct image and view it locally.

What do you think ?
Thanks.