Latest Litecoin Wallet can't see the GUI

I hadn’t updated my Litecoin wallet in several months. Today, I launched (unknowingly) the old version I had and let it sync. About half way through, I got a message that the alert key has been compromised and that I should upgrade. I then downloaded the latest version of the wallet from the litecoin site and installed.
The wallet appears to be running, but there’s no GUI. I tried to launch it again, but got a message that it’s already running.

I don’t want to force quit the wallet, I don’t know what it’s doing. It’s been running for a while.

What should I do