Hello fellow windows users....

I'm having some problems setting up my home network
First a List of the Connected devices:
both vista
PC (main computer) Win 64prem with Printer connected to router via ethernet
Laptop WinHom connected via wireless to the same router
Internet works on both. In the Network i can see both computers but when i
want to connect to a folder from the other computer i get proped with a
message that i dont have enough premissions. I have shared folders on both
pcs. This of course unables me to share the printer with the laptop.
Windows firewall is off.
Thanks for any help !
Mike Germany