Oh, one important difference 

Forum: 3Com PCMCIA Ethernet Adapter Issues
Re: Problems with 3com 3CCFE575CT-D (John Gross)
Re: Same problem but with an error msg (Marcus Fawcett)
Date: 1999, Dec 12
From: Marcus Fawcett menlor

The kinda important difference I should point out is that I am using version 3.1.5 not 3.1.4... also I left the memory ranges set as thh defaults in the config.opts file.

to: "Oh, one important difference"