phpbb header i think i did somthing wrong

[avy 0]

i didn't like the way the header was set up so i went to overall_header and changed with html editor. but then i tried to see if it worked but now i get a green flash and them nothing happens. no forum at all. please tell me what i can do to fix this problem. thanks in advance.

[deejames 0]

uhmm... try to reinstall it again... if you want to have your own header on your page.. Download some templated that is editable or configurable..I hope im right..