LF: Port problem fixed

["Mike Dennison" <mike.dennison@ntlworld.com>]

I have now solved the parallel port problem reported earlier. I tried 
a suggestion from Alan, G3NYK, (thanks Alan) but that didn't fix it. 
In the end I deleted all of the programs that were on the computer 
when I got it (secondhand), and the relevant pin sits at 0V all the 
time except when I am keying. I suspect one of the programs was 
periodically checking the port.

de Mike, G3XDV
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