I own a MC707LL/A iPad and just purchased a 30-pin to VGA connector so that I could use Keynote at an upcoming (Monday & Tuesday) conference. I tried the equipment out today at my office and once everything was hooked up, I got an error message on my iPad with words to the effect that "this device is incompatible with this iPad." If I traded in my 30-pin to VGA connector for a lightening model, could I use my iPad mini, or is this a problem of a different sort? Any help anyone can offer will be greatly appreciated--I'm flying out on Sunday!