I have a Toshiba Satellite A20 WinXP Pro.  I use it (or am trying to)
on a home wifi network.  My other computer is a Win2K tower.  I can
see the tower machine on the network and can access files.  BUT, I
cannot see the laptop (Named TOSHIBA) on the network.  I just doesn't
exist.  

Toshiba will not help on network questions.  What has been turned off?

Help!

Thanks,
Unk