Experiencing delays connecting Win XP Pro to a domain

I bought a Dell Latitude with Win XP Pro with SP1 installed. I'm having problems while connecting it to domain....

It takes a long time to log on to domain and the users' shared directories with Read Write Permissions also takes minutes to get through. You may experience delays when logging into domains because of a Group Policy setting that controls how networking services are loaded during the boot up process. This speeds up the login process in a stand-alone workstation by allowing the user to log in with cached logon credentials before the network is fully ready, but can cause delays for a domain logon.

You can disable this through the Group Policy MMC snap-in. Under Computer Configuration-->Administrative Templates-->System-->Logon, change "Always wait for the network at computer startup and logon" to ENABLED.