Ti Snow Play scream noise and stop playing sound

I'm frequently getting scream noise when i play most patches and then no sound
panic button doesn't make any sense and don't stop that screamy noise
i have to turn off/on again for getting back unit to sound but when i play any note or use audition button on unit it will get freeze and screamy noise!!!!
it happens also standalone without connecting usb cable.

Please direct me where is problem?
do i have hardware problem?

Thank you

Thank you .marc

Cool macroboy ,i'm glad for you and i hope you will get your unit soon and pray me it happens to me,:)
Thank you.