I have been having exactly the same trouble Rona, Someone suggested that I cleared the cookies!!! I have tried this and it makes no difference whatsoever!

The only way I can ever get back on is to turn off the puter and unplug the wirless connection from the mains!! And this does not work everytime! It is not so bad for me as it was, but is is still happening, Very annoying, as as you say getting onto other sites there are no problems
regards
DT