Joomla 1.5.26
K2 2.6.0
1) When I go to the K2 items list, my Joomla menu isn't accessible anymore.
2) The K2 tabs are not functioning anymore. Everything is shown is a long list. This is with item-editing (content, image, gallery, media etc on one page) and also with the K2 parameters.
3) When I go to the K2 parameters I can't leave it. Clicking save or cancel, the K2 parameters screen doesn't leave and I can't return to the Joomla backend.
