I have been working on a problem i listed here in this forum a few pages back about the gap between the pathway and the fireboard div.
I have narrowed it down by noticing the fb_top_area class table (which i assume has something to do with the announcement box) does not show up in the listcat mode (categories tab) and I am not sure why. Changing the show announcements to yes or no does not change the problem. You can see here:
neparounders.info/forum/ screen shot is earlier in this thread if you have a hard time seeing it.
I caught this problem using the firefox plugin to view the ID and class details.
The problem is in both firefox 2.0 and IE 7