Create VLAN on Powerconnect 2848

I have  a Powerconnect 2848 and i want to create vlans. So i'm starting as simple as possible:

I have set port1 on default PVID 1 and port 2 on PVID 2

In VLAN membership:

VLAN ID 1                      VLAN ID 2

1      2                              1         2

U     B                              T         U

I don't have communication between computers on port 1 & 2. What i'm doing wrong?

Do i have to enter VLANID on network card on the computers?

Thanks in advance