mapped drives

[Lamont Beauford]

I came across your address on the web.
>
> I run a network of 20 computers.  Eight of the computers, which happen to
> operate under Windows 98, are having difficulty connecting to the Linux
File
> Server.
>
> In the past, they have connected to the mapped drives just fine.  But more
> recently, they cannot connect or connect very slowly to the mapped network
> drives.
>
> I have replace the 3Com network cards twice.  It helped to clear the
problem
> up a little.  But for the most part, the problem still exist.
>
> What could be causing this type of problems with my server?