Comment 372 for bug 621265

Solution in post #370 works (almost) for me (i've tried other supposed solutions on internet but nothing worked)
I say almost because on win7 x64 I have speeds of 7540 kbps in download
Before trying steps in post 370 I obtained 721 kbps after I obtained 4566 (so it is at least usable even if not perfect yet)

root@ubuntu:~# lspci -vnn |grep -A3 Wireless
05:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02)
 Subsystem: Intel Corporation Device [8086:1041]
 Flags: bus master, fast devsel, latency 0, IRQ 44
 Memory at f0800000 (32-bit, non-prefetchable) [size=4K]

root@ubuntu:~# uname -a
Linux ubuntu 3.0.0-12-generic #20-Ubuntu SMP Fri Oct 7 14:56:25 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

root@ubuntu:~# lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10