Re: 3Com 3C905B-TX (3c59x.o) Kernel problem?!
your subject line seems to be a little confused about type card you have.
a 3c905 is not a 3c590 , nor a 3c509,
and therefore they do not have same driver.
but probably you selected same module as you did on potato ?
hm, your message sounds like
you didnt install network modules on potato at all,
then you might try to read kernelpackage changelog
to see which NICs are not compiled into woody kernel but were in potato
i dont know whether this will help,
but if you dont have anything else to try...