HP dv5 notebook will not connect to internet

[ArcadianRaider]

I've just installed 8.04 LTS on my dad's new HP Pavillion dv5 notebook, and it will not connect to the internet. eth0 appears to be activated, but when I try to navigate to a page, the connection is dead. The nm-applet icon shows the ethernet as being connected.

Please help.

[Crafty Kisses]

Post the results of this command:
lshw -C network

[ArcadianRaider]

I do apologise if this messes anything about, but I've installed Xubuntu on the computer and it connects to the internet via the ethernet cable fine, but still no wireless.

leon@lk:~$ sudo lshw -C network
*-network UNCLAIMED
description: Network controller
product: Intel Corporation
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:02:00.0
version: 00
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list
configuration: latency=0
*-network
description: Ethernet interface
product: RTL8111/8168B PCI Express Gigabit Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:03:00.0
logical name: eth0
version: 02
serial: 00:1e:68:8d:34:78
size: 100MB/s
capacity: 1GB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.2LK duplex=full ip=10.0.0.7 latency=0 link=yes module=r8169 multicast=yes port=twisted pair speed=100MB/s

[Edit]: Also, the wireless card was working when the computer was running Vista. The power indicator light for the card is red, but there aren't any buttons to turn it on or anything. Very confusing.