Virus TI Polyphony Issue

[Definity]

Hi, For some reason it cuts out when i use more sounds i load up, i also get a the virus is not synced issue but after i press the live button it disappears so i assumed tht fixed it, but would be the reason why its not playing its full poly it even make sounds cut out when im just using 2 channels. It seams to be skipping whole sound rather than just notes so a whole channel wont work for a bit then it will cut in and another one will go out. Any ideas how to fix this, im on TI with the new OS anyone else has this?