http://trac.roundcube.net/trac.cgi/ticket/1484008
I tried to get it working and applied it to rev. 361, but had no luck. The preview option shows up in user preferences, but I'm not getting a preview pane :-[
So if anybody has it working, please send me your files!(config/main.inc.php, /program/include/main.inc, /program/localization/en_US/labels.inc, /program/js/app.js, /program/steps/settings/func.inc, /program/steps/settings/save_prefs.inc, /program/steps/mail/show.inc, /program/steps/mail/func.inc, /skins/default/templates/mail.html, /skins/default/templates/previewmessage.html, /skins/default/mail.css)
I don't get the option in user preferences. I checked all the files and and the patch was applied successfully. However I was able to get the preview pane to work by editing the app.js file according to this thread: http://lists.roundcube.net/mail-archive/roundcube.dev/2006/10/51/
Also there is no display images option in the preview pane. Very nice though. Thanks
Try to update to 391. On my server it works without any problem.
Ditto - mine is also working without a problem. I found I needed to clear my cache in Firefox, but it's sitting there in all its glory. :)