when i start a flight when i click on enable i hear the voices say "test-Test Ect." then it says  "initializing" but it never goes any further any ideas. "windows 7 (Highend comp.) / fsx sp2 / pmdg 737-800 / utx / ut2 / Linda / cpflight mcp/ "  thanks

How long did you wait. I have this happen sometimes. It may take two or three minutes before Vox becomes active. There have been times when it didn't start up at all and I had to shut FSX down and start over.