[VU+ Duo] 5.1 issue with video on screen

[sweet_yus]

Hi

i have a vu duo with a Vu+ Hybrid Dvb-t2/t/c External Usb Turbo Tuner running for cable. recently due to the audio issue on cable i upgraded to openvix 5.1, but now the picture on the screen stops and starts then tries fast forward to catch up (its not watchable). I have gone back to the previous image and all is fine beside the audio issue. Has anyone else had any issues on duo with 5.1 image and cable channels?

is there any other way to fix the audio issue for cable on vu duo beside upgrading to 5.1?

Thanks