My system is:
Manifesto theme from WPZoom
Around 20 plugins active, including Akismet, Hypercache,...
The problem that I have is that the form is not showing at all on default settings, pretty sure because of the hooks inside comments.php. I have attached:
This is the original comments.php: http://pastebin.com/RZvCbNXv
Result: form not visible, comments stay the same
This is modified comments.php with info found in older threads: http://pastebin.com/hSbHjVk
Result: form visible, but column for widgets moved below and footer messed up. Comments not modified in style.
I tried alternative hook names but none lead to the solution.
I'm sure I can count on your help ;).