Cannot Brows Through VPN

I am using Windows XP system. If I just connect to
broadband connection to Internet, it is working OK. But
if I login to VPN, then I can not brows Internet. After
that, I only can brows the Intranet inside my company
network. I enabled the "Use Defautl Gateway on Remote
Network".

My question how can I have both the brows function to
Internet and brows function to Intranet when I am
connecting to VPN?

If someone has this kind of experience, please share with
me.

Thank you

Steve C.