When i launch evernote by clicking on the app icon, the evernote menu shows up but no windows appear. I can quit evernote, that's it.
If i launch it from command line, it works
open terminal
cd /Applications/Evernote.app/Contents/MacOS
./Evernote
(this only started happening after i rebooted my mac - it was running for a while without reboot - I probably had done an evernote upgrade at some point since the previous reboot)