I used Chirp on my XP machine with a Boefeng UV-5R and on Kenwood D72.  I had no problems connecting until I went to Windows 8 Now when I use the cables and start with download from radio the box for the Com port does not comes up. Nothing happens. I check device manager and it shows an exclamation mark in the com port setting.  Any suggestions
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Wes
73's
KB9OIC