Been updated in openpli and rossi2000 is including it in the next release of dreamboxuk image, says hes enabled menus but not tested yet!
Thats a result then, DTS Downmix doesnt work on original DM800SE unit's either apparently Dream havent officially released a fix also heard Dream dont have a license for DTS audo so it's unsupported !
I know that the DTS audio issue is apparently sorted in some Nemesis images using a dreamdts plugin and soe other libraries, didnt think it had been resolved in PLI yet.
It will work fine if you use the optical out and feed the sound through a hifi system etc. It will be very good indeed if Rossi fixes it in the next DreamboxUK image. Fingers crossed.