Infobox showing in the worng position

[gurkenpoo]

Hey! how are you? im just getting the infobox worng mouse position (as the image show)

im using moin1.9.4. tested in Chromiun & Firefox

i tried adjusting some Js and Css even Py, but im really newbie on this. Asked in LiberaChat, so they told me to post an issue in git.