Cisco 2950 switch VLAN problem

Hello everybody,
Here little problem with configuration of 2950
I created two VLAN's 10 and 20, VLAN 1 default get IP from DHCP server on router 851w.
When i trying set vlan 10 or 20 no shutdown command it some reason allow only one vlan in up state and another two to administratively down ??????
I tried set static IP too.
Vlan1 unassigned YES NVRAM up up

Vlan10 unassigned YES NVRAM administratively down down

Vlan20 unassigned YES NVRAM administratively down down

FastEthernet0/1 unassigned YES unset down down

FastEthernet0/2 unassigned YES unset down down

FastEthernet0/3 unassigned YES unset down down

FastEthernet0/4 unassigned YES unset up up

FastEthernet0/5 unassigned YES unset down down

FastEthernet0/6 unassigned YES unset down down

FastEthernet0/7 unassigned YES unset down down

FastEthernet0/8 unassigned YES unset up up

--More--


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Switch#config t
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#int vlan 10
Switch(config-if)#no shutdown
Switch(config-if)#
02:23:55: %LINK-3-UPDOWN: Interface Vlan10, changed state to up
Switch(config-if)#02:23:55: %LINK-5-CHANGED: Interface Vlan1, changed state to administratively down 02:23:56: %LINEPROTO-5-UPDOWN: Line protocol on Interface Vlan1, changed state to down
Switch(config-if)#
Thank you in advance!!!!!!!

Slava