See this:
 
http://lists.roundcube.net/mail-archive/dev/2011-02/0000047.html
 
http://trac.roundcube.net/ticket/1487726
 
http://trac.roundcube.net/ticket/1487625
 
DC

2011/2/18 till <till@php.net>
Hi Ling,

is there a ticket describing this issue with your patches?

Till

2011/2/18 Ling Fude <ling.fude@gmail.com>:
> Sorry. :-)
>
> Now with patchs files in attach.
> This patchs is for enable or disable the attach preview window and you can
> configure it from "personal settings > message view".
>
> DC
>
> 2011/2/18 µËÎÀ»ª <dengwh@bestcheer.com>
>>
>> HI,dc
>>
>> thanks for your reply ASAP, how to find the patch file?
>>
>> Thanks
>>
>> Deng
>>
>> On Fri, 18 Feb 2011 14:21:53 +0000, Ling Fude wrote:
>>
>> Hi,
>>
>> I have the same problem you have.
>> I made a patch to solve this problem but the Roundcube developers are not
>> interested to apply it (I don't know why).
>> Feel free to apply the patch attached at your own risk.
>> I stopped having problems opening attachments after applying these
>> patches.
>>
>> Regards,
>> DC
>>
>> 2011/2/18 µËÎÀ»ª <dengwh@bestcheer.com>
>>>
>>> Hi,
>>>
>>>   im useing roudceubemail 0.5stable, i have a problem about open pdf file
>>> in roundcubemail. the roudcubemail can not load PDF files and has been
>>> displayed "LOADING data".
>>>
>>> please the attached file.
>>>
>>> IE8.0
>>>
>>> --
>>> Best Cheer (XiaMen) Stone  Works CO.,LTP.
>>> Phone: 0592-7221600
>>>
>>> Detachments -The following attachments have been detached and are
>>> available for viewing.
>>>
>>> http://detached.gigo.com/rc/C3/yP1E6Odf/pic.PNG
>>>
>>> Only click these links if you trust the sender, as well as this message.
>>>
>>>
>>>
>>>
>>>
>>> --
>>> List info: http://lists.roundcube.net/users/
>>> BT/1987eeeb
>>>
>>
>>
>>
>> --
>> Best Cheer (XiaMen) Stone  Works CO.,LTP.
>> Phone: 0592-7221600
>
> Detachments -The following attachments have been detached and are available
> for viewing.
>
> http://detached.gigo.com/rc/y4/nlJlEZ2Q/app.js.patch
> http://detached.gigo.com/rc/y4/nlJlEZ2Q/func.inc.patch
> http://detached.gigo.com/rc/y4/nlJlEZ2Q/func.php.patch
> http://detached.gigo.com/rc/y4/nlJlEZ2Q/labels.inc.patch
> http://detached.gigo.com/rc/y4/nlJlEZ2Q/main.inc.patch
> http://detached.gigo.com/rc/y4/nlJlEZ2Q/save_prefs.inc.patch
>
> Only click these links if you trust the sender, as well as this message.
>
> _______________________________________________
> List info: http://lists.roundcube.net/dev/
> BT/b33d0462
>
>