I downloaded the Suite 6.5 CDROM. I used the original TFTP directory
directly from the CD. Now I get:

Now I get: "unable to detect network card."

The download of the bootimage from the TFTP server seems to go OK.

I can hardly believe that the BroadCom 57xx is an unknown network adaper, as
it is used in almost all A-class computers.

The bootimage on CD (the ISO thing) works fine.

Who has a (zipped) TFTP-bootimage that will boot an OptiPlex SX280.