[ubuntu] Please Help Atheros Problem

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http://ubuntuforums.org – I have a toshiba satelitte A135-S4656 and i cannot connect to my wireless internet i have tried madwifi but idk how to do it so if i messed something up and i need to reinstall ubuntu plz tell me, i am running ubuntu 10.04 lspci retutns - Ethernet controller: Atheros Communications Inc. AR5001 Wireless Network Adapter (rev 01) ifconfig returns- eth0 Link encap:Ethernet HWaddr 00:1b:38:41:47:9f inet addr: Bcast: Mask: inet6 addr: fe80::21b:38ff:fe41:479f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 (HowTos)