I can't see shares on the server!

 start
Run
Cmd and enter
ipconfig/all
The gateway, dns and wins should be your SBS
Ping ip of gateway or your SBS if the gateway is not the same as your WINS

If you can ping your server great.

If you have a Dell go to services
Start
Run
Services.msc
Make sure Network Location Awareness is set to automatic.
Go to your network properties.
click on Advanced
Advanced settings
Make sure that your LAN is at the top.

Start
Control Panel
User Accounts
User Accounts
Advanced
Manage Passwords

You could reboot for th enla and nic stuff to stick. The cleared passwords problem should work right away. I also clear passwords in Internet Explorer. Tools/Internet Options/Content and Autocomplete.