IE6 and Proxy

I am using a proxy server on our LAN (AD/DHCP) -

Our proxy server used to have an IP of EG. 150.150.5.10 and was changed to
EG. 150.150.6.6

Now when I set up a Brand NEW workstation and log in to the network the IE
Proxy settings automatically default to the old IP 150.150.5.10 (Where does
IE get this IP from?)

If I change the IP manually to 150.150.6.6 everything works 100% BUT if a
different user logs in for the first time and a local account is created on
the same workstation IE once again automatically sets the Proxy IP to
150.150.5.10 for the new user.

Can I change the IP somewhere on my DC?

"Gerry" <Gerry@discussions.microsoft.com> wrote in message news:222D7419-A47C-4D8B-BC6A-B4CC9349A031@microsoft.com...
> I am using a proxy server on our LAN (AD/DHCP) -
>
> Our proxy server used to have an IP of EG. 150.150.5.10 and was changed to
> EG. 150.150.6.6
>
> Now when I set up a Brand NEW workstation and log in to the network the IE
> Proxy settings automatically default to the old IP 150.150.5.10 (Where does
> IE get this IP from?)
>
> If I change the IP manually to 150.150.6.6 everything works 100% BUT if a
> different user logs in for the first time and a local account is created on
> the same workstation IE once again automatically sets the Proxy IP to
> 150.150.5.10 for the new user.
>
> Can I change the IP somewhere on my DC?

Doesn't sound like an IE problem (so you're in the wrong
newsgroup). More like a DNS problem..