have you tried the readme files in those whdload packages?
normally theres something like nomovevbr,nommu etc in the readme's for peaple having trouble running the games.
im not saying this is what it is,just saying its worth a look.
also please make sure you have all the relivent kickstart files for these,if you dont hey wont work properly.
sorry to jens here,just trying to eliminate the obvios.