Onecare Firewall and Vista Ulitmate

This is strange, if I turn on Vista Firewall I can connect to the internet
however if WHENEVER I turn on OneCare, even with default settings, everything
is blocked, i'm on a Private network, its set on Automatic but whenever I use
OneCare boom everything disconnects, even IE and i'm offline... I get a
message every now and then about Policy could be stopping me, but i've looked
in the Policy section in Administration tools and there all at default and
looking good. Also, In the Security Center it says "Two or more firewalls
running at the same time can conflict with each other" but whenever Windows
is off it still happens..

Anyone else having this problem?? If anyone has an idea to this please let
me know, thank you.