I am unable to access/see the internal SD when I plug in to USB and choose USB Mass Storage option. I can access the external SD, but internal now refuses to mount. I rooted for the first time about a month ago and have not had the time to do anything further beyond a Titanium backup. Everything is present and working properly, I can use a file explorer to see the internal memory, but cannot access or manipulate via PC. My Computer presents two drives (internal and Ext SD), but clicking on the one that should be internal gets me the popup "please insert disc into drive..." This did not happen at the same time as root, have been rooted several weeks before problem appeared.