Take a bare copper wire (flexible...bell wire is fine) and run it THROUGH your dust hose. Poke it out the ends and tie it off to the metal chassis of the collector. Make sure the collector is grounded. Take the other end and clip it to your dust foot. This should eliminate or severely reduce your comm issues. Spiral wire wound hose is NOT adequate.
Go get yourself a wireless video baby monitor. You'll have eyes and ears on THE MACHINE (who cares about the computer?) and you'll know just what is going on. They are cheap and easy to use....
-B
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I use a security cam that I got from Harbor Freight to see mine. I have it run to my 37 tv and it has sound that I keep just loud enough to hear if there is a problem.