Thanks so much for the help, sfbp. I followed your instructions exactly and received the exact same error message as in my last post.
The first time the error message shows up is right near the end of trying to install Open MG and then that same error message occurs several other times afterward during the course of the install.
I would really appreciate the help, but I'm considering just formatting the whole hdd and starting over because of all the problems I've had, hoping that will fix problems like this. It is strange though because it seems like perhaps Open MG got corrupted, beca