I had some problems with user interface inside wffm module. Everytime when i was trying to define value and text for drop list or other multiplechoicefield – list of defined fields were rendered outside the screen.
To resolve the issue, you have to implement the following patch:
1. Navigate to \Website\sitecore\shell\Applications\Modules\Web Forms for Marketers\Dialogs\Field types folder
2. Replace the ListItemsEditor.xaml.xml file with the attached one ( here )
3. Clear the browser cache.
2. Replace the ListItemsEditor.xaml.xml file with the attached one ( here )
3. Clear the browser cache.