[SOLVED] Left hand nav width

Novice user here.... trying to find out how I widen the left hand nav for my posts widget.
It lists date and title of post but not all on same line. Looks really crappy that way.

Need a way to widen it so it keeps it all on one line

I have seen suggestions it can be done under montezuma options. I sure do not see it. I see it mentioned that it can be customized but not how.

Any help is appreciated