Host name resolution

> I have a home ntwk with Linksys Wireless G-Gateway as a switch between the
> PCs. Prior to loading Vista on TOWER1 I used NetBIOS over TCP/IP to provide
> names resolution and I could ping and talk from Host to Host using their
> name. Since loading Vista I can not reach other Hosts on my nwtk from TOWER1
> and other hosts can see but not access TOWER1 (Vista). I can ping with IP
> addr from any to any, but not using host name.
>
> TCP/IP indicates use NetBIOS over TCP/IP.
> I unchecked TCP/IP v6 and have everything else normal in my IP protocol
> settings (using TCP v4).
> Linksys provides DHCP to my network and access to comcast internet where DNS
> server resides. WINS is not set up.
>
> I tried setting up a LMHOST.SAM file but Vista won't let me save anything in
> the directory where that file resides.
>
> Any thoughts.