I have created a child theme built on responsive, however I am having problems where the top menu is unclickable when viewed on an iPad. iPhones work ok as they use the select drop down, but on iPad the html menu will intermittently (more often than not) simply not respond to clicks. Clicking the top will cause the drop down to appear (as expected), but then tapping on a menu item will cause the menu to collapse without following the link. I tried using responsive theme directly without my child theme and had the same problem. Has anyone else had this problem, or have any ideas on fixes?
After some more testing the problem appears to have been caused by a plugin I was using called reftagger. I have disabled the plugin which has now fixed the problem, and contacted the plugin developers.