Hi All,
any help on this greatly appreciated:
Newly installed rocket theme (Lovely BTW - students have gone crazy for it so far!!). Have just tried to edit a category (to unhide an old course/move around a course or two)
and got:

(Another member of staff may have reported a similar problem, I went to investigate and the problem 'Dissapeared'!)
Any info I can pass on to our technician (I am a humble administrator/manager)?
Regards
Tom
Ps: It relates to this post as well I guess: http://moodle.org/mod/forum/discuss.php?d=196943