First and most importantly, did you secure your wireless router? If you did not put on any encryption, than anyone in your neighborhood can hop onto your network and view all the files that you have shared. Even worse, they can just map to the entire C drive by the hidden share \\computername\c$ and see everything on your computer.
But it sounds like you have a good handle on things, I just didnt see you mention that you secured the wireless network. If not, do that ASAP
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Joe
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