LAN connection-cable unplugged

[vikstarquickly]

i've been given a PC running windows XP.
i've connected it all up and its telling me the network cable is unplugged, when i test the ethernet adapter it says it's working.
I'm running a wireless connection to a laptop so know the modem is working.
I don't know what else to try.

 

[Tmagic650]

Get into the Control Panel, "System", "Device Manager" and look for any yellow exclamation marks. Tell us what you find. If you see any yellow marks, right-click on that line and uninstall the device, then restart the PC. If a suitable driver is not found and installed, the network device might be bad especially if the network device is part of the motherboard. You can always install a USB or PCI network adapter

 

[Ultiweap]

Do what Tmagic650 told you to do but on extra check if the RJ45 cable is straight or cross.

 

[vikstarquickly]

there are no exclamation marks in the device manager.
rj45 cable? sorry, i don't know wot that is, so can't check if it's straight or cross.