I was using layers/ full strings and pizz .... I tried a different program and it's fine ... must just be that program ...I had no idea that certain program within Dpro could make it react like that ... I'll just have to avoid that one ... thanks guys ... you saved me a lot of time and trouble ... :)

In order to prevent the "layers/ full strings and pizz" program from crashing, open the DPro MIDI matrix (third button from the left at the top of the DPro UI) and set the "Random Unipolar" depth to 0.

OK .. THANKS  Scook ... I'll do that ....