Thank you,everyone for your help and concern.
Some good news it all working again!! woha!
I spoke with a computer boffin,and he said it may have over heated.
Which I think is likely.As I did have internet going for over three hours
that morning (buying too much stuff from U.S
)
The chap said to turn off computer so it was totally off not just closed.
and leave it for an hour or so,when I came back it worked
But I think I'll get one of those USB wireless adaptors as it does drop out
every now and again.
Thanks again-Chris