after windows firewall putting off on windows vista unable to access network and unable to on windows firewall

Dear All,

I am having Windows 2003 Server Prent and chield domain structure , we
installed windows vista machines and joiend to domain,
after joining to doamin if we put off the windows firewall and reboot the
machine. we are not able to access the network.
network icon is showing red cross mark .if we tried to put on firewall its
not comming on showing firewall service is not on.
if i try to start firewall service its not starting.
its showing 1068 error .


Thanks & Regards
Gurbatullah Khan