Question Author
Hi, I tried all that, but to no avail.
Basically, the problem seems to be: sometimes it connects and the signal is good (although I still can't get onto some websites at peak times - is this normal?)
But also, sometimes there is no signal to the router (there is no light flashing on the adaptor) and I disconnect the adaptor many many times before finally it comes on. Do you think it's an adaptor problem, which a new adaptor would fix? Also, if I get a 'card' for my PC, what do I need to get and from where?
Thanks!