I recently just finished a project in InDesign and the program worked completely fine. I turned on my computer to use the program and when it opens, it's nothing but a gray window. I'm unable to use any of the tools or do anything in the new document. I also tried to open my existing projects and the same thing happens to them, it just shows up as a blank gray window. I haven't done any major changes to my computer or any updates of any sort so I have no idea what's causing this problem. Any ideas?