Block title is not displaying correctly when > 1 line

When I made a long menu title (as a test) for a block. It is 2 lines long, and it's not displaying properly. It runs into the next line, and the background img is only on the first line. I've tried adding display:block and display:inline (at different times) to the .sidebar .block h2 {} bit in the style.css file. Neither quite does the trick.