I uninstalled to install the latest version, now the file I was working on is nowhere to be found. I remember its name and searched for it-- nothing. Wtf? I opted to keep all configuration files etc.
I’m on windows 8 pro x64.
edit: weird, I uninstalled 2.65a and reinstalled 2.64 and the file showed up on the splash screen, even though its gone from where I saved it. A copy was left in the local temp dir.