Lets see if the problem is still happening with my typing.
Although I have just replied to another post without any problem.
(That was typed and altered without any problem)
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I have just tried the original link again and now I will try and alter some text.
(Nope problem does not seem to be happening again)
Warning - while you were typing a new reply has been posted. You may wish to review your post. **************
edit
Chris.
Anything is possible, but I did actually think of that at the time.
Am going to try that now.
Yes that seems to have been the problem.
I must have hit the wrong key which I use to change over the KVM switch.
Sorry for any possible false alarm.