Very Computer

Has anyone come up with a concrete answer for this one yet?
I just did an AltaVista search, and it seems to be happening
a lot, with no good solutions yet.

  $ insmod younameit
  blahblah wrong verson or undefined
  Loading failed!  The module symbols (from linux-2.0.27) don't
    match your linux-2.0.27

Running depmod -a returns NO errors.
Doing make modules and make modules_install  does NOT help.
And to add insult to injury, it was working just fine this morning!
I cannot figure out what the devil I've done differently from a dozen
other successful kernel builds, with and without kerneld.

Here's a bit of further info -- if I try to insmod the aha152x module
for my SCSI Zip drive, I get the rigamole from the subject line.

If I try to mount the drive, I get the error message that the module
isn't loaded -- "(insmod driver?)".  BUT THEN, I can do the insmod,
mount the Zip drive, and everything works fine!  Doing a failed mount
command fixes insmod.  But how?

Does that help narrow it down at all?  To repeat, doing depmod -a
does not do a d*mn thing and recompiling the kernel and the modules
doesn't help either.  It worked just fine under 2.0.17 AND the first
couple of times I compiled 2.0.27.  Help!