From round edges to straight

How can I make the round edges straight? The round edges can be seen next to the name of a category, on bars, and on the logo.

I am using phpbb3.

Bump.

Without being able to see your CSS, I would assume that you might have the round edges in your pics since you're using phpbb3. You could check and if you do, just remove the images. On the other hand, if you check your CSS and find anything like

Code:

-moz-radius-topright-{pixel digits}

then you'll need to just remove those.

Hope this helps.

Well, I don't want to delete the logo image. Any ideas?

(-moz-radius-topright-{pixel digits} wasn't there.)

Removing the round edge images won't remove the logo image. The rounded edge images should be at the bottom (if I remember right) of the list...
Display > Pics Management (Advanced) > General/explore. If there aren't any images there and since you're not seeing any in your CSS, then it would be beyond my area of knowledge. Sorry. :S

Solved.