Sorry so late to the party. I was getting the same error message til I found a newer version of RubyBox which installed with no trouble at all and none of this annoying error message. Unfortunately I spent a good day or so chasing my tail on this and stumbled on the newer RubyBox version by accident so I cannot provide a link. Sure wish that older versions would be swept back into Dev areas rather than laying out for noobs like us to pick up but hey whattya gonna do. Major thanks to those who work so hard on these programs, it's a joy to be able to go back and play games like Dune 2 and the King's Quest series again, they blow away anything I have on my DS!