Need Help; Connection Problems

[Bloop]

Okay, this started happening 4 days ago I believe. When I was browsing around about every 1 in 10 times, my browser would take about 2-3 minutes to load, but when it was done, it just brought up a blank page, but after I refreshed that page, it went back to working normally until it happened AGAIN. This has been really annoying and it's a pain to browse around like this...

I tried putting ipconfig on a command prompt and noticed that it it said:

Connection-specific DNS Suffix . : domain_not_set.invalid

I'm not too computer litertate, so I don't exactly know what it means. If it has anything to do with that, please tell me what I can do to fix it... If not, can you suggest what you think may be wrong?

Thanks.

Also, I'm browsing with Mozilla Firefox and have a Dynamic IP, but it happens with Opera and IE as well. I can use Instant Messengers like AIM and MSN and can play game online. ISP is SBC DSL

And ipconfig/all, if you think it might help.

Microsoft Windows XP [Version 5.1.2600]

© Copyright 1985-2001 Microsoft Corp.

C:Documents and SettingsOwner>

Windows IP Configuration

        Host Name . . . . . . . . . . . . : Woowoo

        Primary Dns Suffix  . . . . . . . :

        Node Type . . . . . . . . . . . . : Mixed

        IP Routing Enabled. . . . . . . . : No

        WINS Proxy Enabled. . . . . . . . : No

        DNS Suffix Search List. . . . . . : domain_not_set.invalid

Ethernet adapter Local Area Connection:

        Connection-specific DNS Suffix  . : domain_not_set.invalid

        Description . . . . . . . . . . . : VIA Rhine II Fast Ethernet Adapter

        Physical Address. . . . . . . . . : 00-0E-A6-98-21-6F

        Dhcp Enabled. . . . . . . . . . . : Yes

        Autoconfiguration Enabled . . . . : Yes

        IP Address. . . . . . . . . . . . : 68.94.125.122

        Subnet Mask . . . . . . . . . . . : 255.255.255.0

        Default Gateway . . . . . . . . . : 68.94.125.123

        DHCP Server . . . . . . . . . . . : 192.168.0.1

        DNS Servers . . . . . . . . . . . : 192.168.0.1

                                            192.168.0.1

        Lease Obtained. . . . . . . . . . : Sunday, August 26, 2007 9:10:20 PM

        Lease Expires . . . . . . . . . . : Sunday, August 26, 2007 9:20:20 PM

C:Documents and SettingsOwner>