[imp] Disable of preview of attached word/powerpoint/excel sheet files.

[ANANT S ATHAVALE]

Dear List,

Using HGWE 5.1.3.  When doc files are attached, I get option to preview. 
I have already installed abiword.  But still, unable to preview.  I get
the following error:

A fatal error has occurred
Could not display attachment data.

1. IMP_Compose_View->composeAttachPreview() /var/www/horde/imp/view.php:44

Details
The full error message is logged in Horde's log file, and is shown below
only to administrators. Non-administrative users will not see error
details.

IMP_Exception Object
(
    [details] =>
    [logged] => 1
    [_logLevel:protected] => 0
    [message:protected] => Could not display attachment data.
    [string:Exception:private] =>
    [code:protected] => 0
    [file:protected] => /var/www/horde/imp/lib/Compose/View.php
    [line:protected] => 54
    [trace:Exception:private] => Array
        (
            [0] => Array
                (
                    [file] =>
/var/www/horde/imp/view.php
                    [line] => 44
                    [function] => composeAttachPreview
                    [class] => IMP_Compose_View
                    [type] => ->
                    [args] => Array
                        (
                            [0] => 1
                            [1] => 1
                            [2] =>
                        )

                )

        )

    [previous:Exception:private] =>
)

Now, I have decided not to allow preview of word/powerpoint or excel sheet
file after being attached in compose window.  How can I do that? 
-- 
           Regards
            Anant
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