Hi dageezerus,

Thanks for quick reply! I will write down my ideas just in case for somebody else having similar problem.

I have this notebook almost one year without any problem with wireless (so I have played with bios (enable/disable wireless) as well enable/disable with Fn+F2, so I"m not very nuby for this matter). I suspect that new Ubuntu 7.10 might be related to my problem (but it affects both windows/linux when wireless is gone)

I have got one silly way to get wireless back (both windows/linux):

It comes back when I use cable for all day (with wireless off) and shut notebook off for night. So next morning I got wireless back until for any reboot. If it's gone then I have to make all over again (one day with cable, next day with wireless :-).

I suspect something goes wrong with linux driver ipw3945 (cos using linux all day, and window for testing only).

I have found some similar bug reports:
https://bugs.launchpad.net/ubuntu/+source/linux-restricted-modules-2.6.20/+bug/118110

http://bugs.archlinux.org/task/7709
This looks very close what I got (by the way i started to use Icepodder recently to download podcasts, it uses torrent protocol as well, so ipw3945 is real suspect right now).

I'll update about my progress.
Priit

Ok, I have got a little smarter now. ipw3945 is "older" driver and new one is iwl3945. linux.dell.com wiki has got nice howto: http://linux.dell.com/wiki/index.php/Ubuntu_7.10/Issues/ipw3945_Wireless_Network_Module_Issues