Horizontal Scroll bar not scaling to show everything.

I'm working on a table in Numbers, and nothing was wrong at first. Now, the horizontal scroll bar won't scroll far enough to the left to show the early columns that need to be brought out from behind the header columns. When scrolled farthest to the left, it shows only half the first non-header column. I tried saving and restarting the program, but it just doesn't allow me to scroll further over. All I can think of is that I added a second header column a little after I started work on the table. Please help, it's breaking the entire function of the program.