Hi Folks, my VGN-N38Z has started having probs with the wireless. Despite the switch being in the on position it declares there are no networks available, yet it finds them ok with a usb arial. Sometimes when it works it'll be ok for weeks then it'll just die. Tried changing the wireless card on board to no avail, inasmuch as it still does the same thing. the wireless arial cables seem ok and the plugs are secure. not followed these through into the lid or wherever they go, not sure whether they're just open ended wires or do the connect to something else in the lid? if so would the prob be there?

Any help gratefully recieved, at tearing hair stage!