I'm working with a column chart in Excel - I'm trying to resize the title box
of the y-axis, but I can't. When I double-click, I see the thick line and the
dark boxes of the sizing handles. However, when I try to use these, I get no
double-headed arrow and can't resize the box. I can move it around, but
that's all. I can't resize the chart title and x-axis titles either.

Weirdly, I CAN resize the legend box.

Anyone know how I can fix this?