@Anders Granlund perhaps it is not a big deal that
isa_bios.prg is not working under MagiC. After loading the MagiC Booter the network card driver is loaded from
gemsys\magic\xtension. After that all programms from the auto folder are executed. Usually I would place
isa_bios.prg in the auto folder after the MagiC Booter,
rvnova.prg and
nvidi.prg. But could that be an issue if the network card driver is loaded before the ISA P'n'P cards are configurated by
isa_bios.prg under MagiC? So I think it does not make a lot of sense to place
isa_bios.prg after the MagiC Booter in the auto folder because the network card driver is loaded first?
Currently my using the software release of October 7th, 2025. I hope, I will update the rom and software soon.