You need to determine whether the 400CS supports Cardbus as a 32 bit card is 
Cardbus. Either both slots or neither is 32 bit on the laptop.
The users manual is here.
http://209.167.114.38/support/Download/files_downloads/index/SatellitePro/sp400en.htm
Terry

"Garbin" <igcain@lineone.net> wrote in message 
news:31mhf.4763$a15.2925@newsfe5-win.ntli.net...
>
> Hi
>
> I have (for supporting legacy software applications) an ancient (yet 
> reliable) Toshiba Satellite Pro 400CS running Windows (non-OSR2).  I now 
> find I need to connect it to our ethernet LAN.  So I purchased a 3Com 
> 3c589B PCMCIA newtork adapter and despite it appearing to install 
> correctly I am having problems.  My questions are:
>
> 1) is this adapter CARDBUS? (it says it is 32-bit but is that the same 
> thing?)
> 2) if it is 32-bit which PCMCIA slot should it be put in ('0' or '1')?
> 2) do i need to upgrade to OSR2 to get it to work?
>
> Thanks
> Garbin
>
>