Clickable empty entry when creating new channel list

#1
When creating a new channel list, there is in the lower part a box called "Dynamic List Settings". In the lower part of it is a big blank space with a check box at the left side - all the rest is empty, so it is not to see anything what you can click on / select. If you click on it, there is visible that there should be some kind of word, but what it is is not visible.

What should that be?

BTW: I use a Hauppauge 930C and Pinnacle Quattro-Stick and only have DVB-C as active sources. All the other TV-Sources are disabled. I enable them separately and disable DVB-C if necessary.