AS i make changes while developing, I save the data base, then after a point I save it as a different version. I just made some changes to the latest version, and closed ACCESS. The when I try to open the version It starts to open the goes away. If I retry it tells me I need to make a backup, but, when I do it says that one already exists. If I can't open it how do I repair it, or is that not an option.