[Plugin: Digg Digg] Problem with floating bar and hide width?

I see from the changelog that there is in fact a feature that allows Digg Digg to not display if the browser window is a certain width or less – but how do you actually implement this on a WordPress website?

I’ve checked several of the plugin’s files and can’t figure out how to set this hidewidth value please –

How does this work?

http://ww.wp.xz.cn/extend/plugins/digg-digg/