Action buttons are not displayed nicely inside Dashboard gadget "Display"

Steps to reproduce:

• Edit the Dashboard and add a new gadget "Display" (its description is "Display other pages into the current page.")
• Add as reference page for the gadget a page containing a livetable (e.g. Forums.WebHome from the Forum Application)

Result: the action butons are displayed one on top of the other inside the gadget unlike the forum homepage.