How do I add line spaces in the recent posts widget?

HI,

Please look at my site at www.lancesview.com. I'm using the Atahualpa theme.
On the right sidebar I have a standard text widget for Recent Posts that I took from Wordpress default widgets.
How do I space out the links to the recent posts in the widget so that there is a clear separation between all of them. Right now they seem to run together.

Thanks

Lance