[horde] New install of webmail edition 5.1.17 gives blank squares without words/links on top of admin config pages

Arjen de Korte build+horde at de-korte.org
Thu May 30 06:34:41 UTC 2019

Citeren info at interpost.biz:

> Hello,
> New install of webmail edition 5.1.17 on debian stretch with php 7.2  
> and 7.3 and 7.1 gives blank squares (instead of the clickable tabs  
> we should see) without words/links on top of admin config pages. The  
> exact same number of squares as the rectangles containing words  
> (configuration settings tabs) on a working instance. We installed  
> horde as usual from stretch repos.
> Are we missing a piece of software? What?  
> Are those tabs images? Is this a display image problem? 
> Is there a configuration setting that needs to be adjusted?

You're probably running an outdated version of Horde_Text_Filter and  
PHP 7.3. This is a known problem and was fixed in December last year.  
We do not support installation of Horde from any other source than the  
PEAR repository, so you'd need to change your installation source.

> We have a working instance of the same version of horde webmail  
> edition on a same server setup and we can't find the diffference  
> between them. This appears to be the only problem. Any help  
> appreciated. We are modifying the /etc/horde/*/conf.php files  
> manually to get it working, but we'd like to be able to use the GUI  
> to make small changes, and we can't even see the tabs (except as  
> blank small squares) and only the first page of each piece of horde  
> (i.e. horde, imp, tream, etc ... displays) in the administration -->  
> configuration  section.
> Thanks for your suggestions of fix.
>  Ed

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