I just implemented a header. It uses a style sheet and some php code. Now the forums have lost their nice colours. Its almost as if they are no longer using a style sheet.

If I remove the header, everything is fine.

PHP code in the template? I think this is causing the issue.

Paul, I tried various combinations. Even if the footer file is blank, it loses the colours. If I comment includeheader, then its fine.

"Losing the colors" may actually mean the CSS file is not loaded up. When your website is loaded up in the browser, View the Source Code for it. In the source code, locate the CSS URL. Most probably it will contain some error which could give you some points of why it's not loaded up.

Paul, I found that bb_functions (line 101 in my copy) when it loads IncludeHeader, it returns. so that main_header is not loaded. Maybe you intended it this way. But I was expecting it to load my header and then load yours. I have commented out the return for now. It works really well (including php code ans tyle sheets etc in my header).

Thanks for a great effort in producing this board.

If you load your own header, logically, miniBB WILL NOT load up its own.
Else why would we need such configuration, in general? :)

I have no ideas where did you read or take this information. Even the manual clearly says for that option: ....if you don't want to use miniBB's default main_header.html...

You shall paste default miniBB's header code parts to your own header, if you want them appearing there.