Noticed a potential issue with one of the database entry :
Highlighting said game (Allo! Allo! Cartoon Fun!) will make Gamebase crash, no biggie. So what I did was delete the duplicate entry with
MDB Viewer Plus. It didn't seem to affect my gamebase setup upon restart (and Allo! Allo! Cartoon Fun! is still there, with its screenshots and all).
1) Make a backup first 2) You're doing this at your own risk
