Computer not recognising my wifi but does see the neighbours'
I have two computers that I mainly use, a self-built desktop with XP and a Toshiba laptop with Vista. Both these computer 'see' and currently allow me access to the internet via my Talktalk broadband. I have a third computer (running XP) in a different room which is not used so much (used for graphics work mainly) and which, the last time I used it, allowed me on-line with no problems. When I tried to go on-line with this third computer yesterday I could not as it was not 'seeing' my Talktalk broadband. However, and most annoyingly, it was 'seeing' my various neighbours' Talktalk, BTinternet and BTfon (whatever that is) networks. Refreshing the available networks list didn't help.
Anybody got any ideas about this before I do battle with Talktalk's helpline (in India!) tomorrow)