recent-global-posts-widget only shows recent posts from main blog, not from other blogs

First post, wpmu newbie.

Installed, activated and added the Recent Global Posts Widget to my main blog, cjk.com. It shows the latest post(s) to cjk.com but does not show the latest post(s) to any of the other five blogs I've created, e.g., tangpoems.com.

Edited widget-recent-global-posts.php, line 42, changing recent_global_posts_widget_main_blog_only = 'yes' to 'no', then added the Recent Global Posts Widget to, for example, tangpoems.com. Again, on this child blog (is that the right term?), the widget only displays the recent posts from the main blog, cjk.com.

Anybody have any suggestions?

Thanks.