Cadaver runs on a 512K or 1 Mb Configuration on the A1000 and A500 using Kickstart 1.2 Disk or ROM Chip.
When I upgraded to Kickstart 2.0 it stopped working.
What version of Kickstart are you using. If you have a HardDrive or accelerator try disabling them and see if that helps.
If you do have a hard drive, accelerator and later Kickstart try using Whdload.
Cheers
Shaf
