Eurgh! Why do people insist on using no standard colors & fonts when posting!
Anyway... what did you set as the hook location? Also when you said "
header section" what exactly do you mean by "
section"? Do you mean template or something else?
It seems odd that the $my_header is not evaluated to just an empty variable which is what I would have expected to happen. Can you post the entire contents of the Plugin? (use [php] [/php] tags

)