Can see the section that lets you choose message board

I'm using safari on a Mac with the latest software.10.5.5. There is a big blue line over the section at the top where you can choose what you want to look at for example the message boards. If I refresh the page I can see them for a nanosecond and if I'm really quick I can pick something otherwise it has a big blue bar across the screen there.
I do not have this problem with Firefox but Firefox has its own set of problems which is why I don't use it.