RSS feed without picture prints Feed_image

Two questions:

1) When I add a RSS feed to the frontpage, and it doesnt have a picture associated with it, then CollectiveX prints Feed_image instead, but the letters go through the headlines  making it hard to read. (See: NLP Kring) Can you provide with a placeholder graphics so the frontpage looks nice again?

2) How do I remove an RSS feed once it is added to the front page?