VPN problem in vista

Hello everyone

in windows XP i was UNcheck the default gateway for the vpn connection i

create , so i can access the remote network without to have the destination

gateway as my internet gateway

when i do uncheck the same box in windows vista vpn connection, it come back

to checked by default when connected??

i installed SP1 for vista,

that means my whole computer having the remote vpn gateway as its internet

gateway.

any Help !!

is there any solution may help ??

thank you.

A.Sabry