ok i have an acer 250 it had no wifi module fitted until i got one and wacked it in with antenna's installed ,i added the driver in xp it was all up and running as far as it could be seen from windows and searched for a nework that it couldnt find , i assumed a antenna problem so tried some different ones , but the same fault remained, i then changed the wireless card for another model of intel wireless added the drivers etc but still the fault remains ! so different antennas , and internal wireless cards but the same fault seems to point me in the direction of a bios or manual switch that is disabling the antenna from picking up networks , anyone any ideas.

just for reference i have checked my sid and many networks can be found by my other laptops just not this one Grrr

make sure the mini pci status is enabled in the bios first