Playback Engine PT12.3

Hi. After upgrading to PT 12.3 from 12.0 I got a message when I opened it up, 'Current playback engine does not support sample rate of 44.1khz'. This was cured when I changed the playback engine from 'Windows Audio Device' to 'M Box Pro' but the system is more prone to crashing. Any answers or should I reinstall PT 12.0?

Thanks,

Nigel Moore.

Playback Engine PT12.3