Saved a project...project disappeared.

I’m on Cubase 7.01. Made a new folder and a new project inside of it, recorded a guitar solo for someone. Saved, closed, worked on some other stuff for a while. Went to recent file list to open it again, clicked the file I’d saved and it told me that the file no longer exists - do I want to keep it in the recent files list or remove it? It’s got the full path of the file and everything. But when I go there, there’s nothing by that name. Has this happened to anyone else? Could anything else have caused this?

Sure you didn’t just turn off or disconnect an external drive?