Hi Martin,
You probably figured this out by now, but in case you didn’t, all you need to do is add the following rule to your style.css:
#sb-title {
display: none;
}
That should do the trick.
Omission, mauricenaef, et al,
I agree. The lack of the ability to easily detect the current parent category for the single post you’re viewing is troubling. I can think of many reasons you’d want to do this – Breadcrumb navigation, Showing a parent category as a primary title to what you’re viewing, etc.
Offhand, and I’m not an experienced php programmer, I think that if the next_post_link keeps you in the current category you’re viewing, then it’s detecting which category you’re in, so the answer maybe could be found by determining how that function detects that.
For the record, I think there should be a function to detect the current category for a single post. Something akin to a get_the_category, but more powerful than the $category[0]-> method.