I bought this USB keyboard/case for my mom's Zenithink C71 Upgrade. It has a full-sized USB plug, so I need to get a USB-to-mini USB adapter for it tomorrow. The thing is, I'm also anticipating possibly having to change the USB bus mode to get it to work, as that is mentioned in several of the Amazon reviews of this product. Here's what one reviewer wrote: Now here's my problem: When I call up the menu on that tablet and get into the system settings, I can't find Advanced Settings or anything else that would let me alter the USB host mode. This is a Chinese tablet we're talking about that came from the factory with a presumably ordinary install of ICS. Is there something I'm missing here? Is USB host mode located somewhere else when you're in ICS? Thank you in advance for whatever light you can shed on my dilemma!