Hi
At a guess you haven't got split tunneling enabled - which means that at the moment all traffic will be routed across the VPN tunnel.
To define split tunneling, you need to do something along the lines of the following:
vpngroup vpnclient address-pool vpnpool
vpngroup vpnclient split-tunnel 101
vpngroup vpnclient idle-time 1800
vpngroup vpnclient password ********
access-list 101 permit ip any
where and identify the network that you want traffic to be tunnelled. You can specify multiple networks if required.
Hope this helps. Regards, Barry