Hello! I've finally solved it!
- The error messages by commenting some entries in the network script, - The card problem by changing the BIOS! Yeah, I can't believe it myself, but I simply had not remembered that a non-pnp card was using IRQ9 and I had not told that to the bios which also gave IRQ9 to the net card. Now, all this is OK. Thanks for the help and Kind Regards from Germany, Stephan Hachinger