Sounds more like your supsersu hasn't got the right permissions. Try re-rooting the device, should solve your problem.
Exactly. It's definitely frustrating that it didn't come properly rooted for some people, but there is a fix available for it.
RacerX, instead of hating your tablet, why don't you try fixing root on it? I've suggested multiple times on the main thread (not to you, but in general) that people should fix their root access issues before they do anything else, but no-one ever responds to me. Instead there are just more and more posts about how "this doesn't work" and "that doesn't work".
Someone (I can't remember who, so I apologize) went to the trouble of figuring out how to fix root and posted the steps. I don't understand why people don't just fix it.
TRUST ME, you want proper working root access. You'll be amazed how many issues you're seeing are simply the result of improper root access... this one problem results in a multitude of side effects.