Just a heads up, there is now update 1.1.0 available!
Aside from a bunch of bugfixes, it addresses the issues with the save/load menus, and also adds some new features, including a remake of the 1995 Amiga demo!
Unfortunately, old saves won't be compatible with this new update. However, you should be able to get back to where you were pretty quickly through the use of the Chapter Select in the main menu, especially since the Enhanced Edition allows you to skip cutscenes.
