First of all, I'm in complete agreement with grap, that you should be indenting your code; if not for yourself, for anyone else trying to read it.

Secondly, are you running into a buffering issue, perhaps?  What happens if you append a newline to the data being sent to the socket, to try to flush the buffer?  For example:

print $ClientHandle "Testing\n";
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Does that get you any further?