One potential fix for this issue is to create an empty text file called: .nomedia (with no extension), and to place this file in the /sdcard2 folder. The /sdcard2 folder is the root folder of your MicroSD when it is installed in your gTablet. I read this on the XDA Developers forum. However, this is not a conclusive workaround, as a Google search for ".nomedia android" yields various feedback.