Trouble with protools and interface after instalation

  • I purchased , downloaded and instaled Percx yesterday on my mac. OX 10.10 with protools and Saffire pro 40 interface. Fist tried PercX with my internal speakers, and everything was OK, but when I tried to open it with my interface I got no sound or midi and al my other protools files do not work. Protools is very very slow when i use the saffire Pro 40 output. Also mi kontakt instruments have been afeccted. I Hope yow can Help . Thank you

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