It's probably lack of memory.
The patches work fine for me.
Try booting with no startup and running it then.
There are some files that are supposed to reboot and then run the game to solve memory problems. I think these were included in the patches and are in the top directory.
These didn't work correctly on my Amiga but if I rebooted, the game then ran automatically on boot.
I'd be v. careful with these because on my Amiga instead of using RAD: it used DH0: and overwrote my startup-sequence and various files in C:
Took me ages to get the computer working again. Only to discover I had enough memory to run it from the exe anyway.
