Pugin causes slider to not work

When activated, Wordpress Google Calendar (http://code.google.com/p/wpng-calendar/), causes the slider to fail. It doesn't cycle through images and also starts too far down in the post area. Any ideas of where I should look in the plugin? I need a plugin that displays our google calendar in a widget and it's what we used on our old site. My set site is http://www.ipcrew.com/SHSTest/ One unrelated question. When links are in the menu, is there any way to specify that they open in a new window?