Try a Read stage using the Get HTML Attribute function and specify the Class Name attribute as the variable. You have said above that there is a difference in Class Name between the checked and unchecked elements, so this should give you a value that indicates whether it has been checked. Stick a decision stage in after this and you can take necessary action. I'm not sure why you can't click the element however, perhaps try specifying its coordinates instead of using a centre click, or try different spying methods - for example AA rather than HTML.