how to fix dolby digital problem in Gemini 4.7 ??

[niljaviya]

hi experts,
i have dm500s Clone with Gemini 4.7 (no bomb - clone safe)
works perfect,
i am using optical Audio(toshlink) for 5.1 home theatre with dm500s
but on ppv it dosen't work on dolby digital (north america ppv is DD ) !!!!
before gemini i was using open PLI ... there is never problem in dolby digital sound...

is there any fix or addon /plugin to work dolby digital with gemini 4.7 ??

thanks in advance ..help appriciated