>> I got the same messages; they disappeared when I changed to the
>> in-kernel modules for the ipw2200.
> 
> so let me understand: changing from the ipw2200 external-provided
> driver to the in-kernel one solved this issue? Which kernel?
> But i thought that the in-kernel driver were older than the driver you
> could directly get from the ipw2200 site....

Kernel 2.6.14 included ipw2200 1.0.0, i think.
I once heard, that 2.6.15 will include some "updated" version, but i
have no clue, which one it is.