midi devices all gone

I was working on some vocal tracks when I got a blue screen.
On rebooting and going back to Cubase and opening the backup song, I find that all the midi devices are gone. In Midi device manager, nothing is installed or connected to the MOTU Midi Express 128. I had the programs organized and everything, and now all gone.
Is there some XML file or such that has the settings and can be retrieved or do I have to start all over?