Dual boot/internet won't connect

I have just added xp home 32 bit to my set up and can't connect to the internet.It was fine when i had vista 32 and 64 bit on dual boot,i could swap from one to the other and the internet worked fine,but when i go from vista to xp,xp won't connect?I have made sure the connection is enabled and working properly,i have tried xp pro as well,but nothing.Is it my pc,It is very new?

Intel® Core™2 Quad Extreme QX9650 Processor (3.0GHz, 12MB Cache, 1333MHz) clocked to 4.0 ghz
Genuine Windows Vista™ Ultimate Edition 64 bit with Service Pack 1
XP 32bit dual boot.
Coolermaster Cosmos S Ultra Performance Aluminium Chassis with 1250W PSU
Cooling Pack for COSMOS S Chassis ( 5 red LED 120mm fans)
Performance Pack - OCZ Vendetta Heat pipe quiet cooling, Performance updates, specialist cabling
PCI-Express Mainboard - SLi nForce 780i SLi - Intel Core2Duo/Quad Core - ATX
8GB DDR2 800MHz Memory (4 x 2GB)
2 x 1000GB Serial ATA 2 Hard Drive with 32MB Buffer (2TB Total)
Blu-ray ROM Player Dual layer DVD Writer 24 x CD Writer
Super Format 20x Dual Layer DVD Writer +R/-R/RW/RAM
2x 1GB nVIDIA GeForce 9800GX2 - Dual DVI, HDTV, TV Out
28" Widescreen LCD TFT Digital Display with internal speakers (DVI, 3ms)
Creative Labs Sound Blaster X-Fi Xtreme Gamer Sound Card
Logitech S220 - 2.1 Speakers with Subwoofer
Logitech G11 Gaming Keyboard + MX Revolution Cordless Laser Mouse

3DMark06 19500

Do you have drivers for your NIC installed?

How do i tell?I have this xp installed on an old pc and it works fine.And vista on this pc works fine.
repair 1394 connection
windows could not finish repairing the problem because the following action cannot be completed.
failed to query TCP/IP settings of the connection.cannot proceed.



Thanks.

1394 is not a NIC - that is Firewire.

Device Manager is how you tell if drivers are loaded or not.

Your last post is a bit confusing, so let's start over.

When you say you added XP Home as a dual boot to your rig, you *did* install it, and not just added a HD with XP pre-installed on it, right?

Yeah i installed it as in this tutorial(http://apcmag.com/how_to_dual_boot_...stalled_first__the_stepbystep_guide.htm),only on a different internal hard drive than vista.

OK, so go into Device Manager and see how many different items you have under network adapters. If you only have that 1394, then you haven't installed XP drivers for your NIC.

Thanks John that was the problem,its sorted now,but its given me another problem.When i try to install a firewall its says i must remove nvidia firewall first???

whoa. nVidia firewall? That's a new one.

How about posting a screen shot of the error message...and which firewall are you installing?

Sorry John its well gone now.i just removed the drivers that enabled my internet connection and its still connected,wierd.I found out about nvidia firewall on google.Only thing is now,when i install the recomended driver for my 780sli it took about 20 mins to start,same in safe mode.So i had to re-install xp.Now i've just put in the drivers for my x-fi sound card and its done the same,its lucky there's not a hammer near this pc.Maybe its because i had to remove that nvidia driver?

Ok,i just turned on xp and its fine now...apart from the sound.