Question regarding the touch pad and a tablet accessory: My iRulu came with a USB keyboard/folio. Initially it worked great with no issues. Now, however, when it is plugged in the touch screen functionality on my tablet freaks out (i.e. touching on location causes one or two other locations to be touched as well). Is there an app that can fix this, is there a setting I need to adjust, or do I need to just not use the keyboard?