So here's my problem. I opened Logos 5, and it went into "Logos is Preparing your Library"
Strange, since I didn't think anything was downloaded/updated today, but I might be wrong. Okay. I'll let it sit since it says it might "take a while."
However, after a couple hours, I check my Windows task manager - "performance" tab. CPU usage shows 0%, nothing is processing. Hmm. Nothing downloading in network either... double hmm. So I killed it in applications.
Now, it will not restart. I clicked Ctrl and started the program to log the error, and I basically got, "Logos is opening. Logos is terminating." Nothing else. The logo comes up, and the disappears. That's it.