I am using Ubuntu on my system and everything works fine.
I have tried to use Backtrack Live CD and it fails to detect my ethernet/LAN card.

$/sbin/lspci gives:
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.
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00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:08.0 Ethernet controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) integrated LAN Controller (rev 02)

$ifconfig eth0 gives
eth0: error fetching interface information: Device not found

Can somebody help me??