I bought a Karbonn Smart Marvel. When I first used the tab, I added all of my music and what not via a friend’s computer running Windows Vista. Now, a couple months later, I'm attempted to update my music, and my computer at home which is running Windows XP will not detect it at all. When I plug in my tab, it detects I'm plugged into a computer. I've tried turning USB debugging on and off multiple times. It's set to automatically come up as mass storage and I'm able to turn that on and off via my phone. But Windows explorer will just straight up not find it.