A few MCE questions

i have a recently installed MCE2005 on a SFF compaq PC, it works ok (the wife can use it) have a HT pre power system and i pass thru audio via SPDIF. using a M-audio revo

DVD DD and DTS work fine, but how do i change the audio track from say PCM to DD on the fly without going to the menu, in some cases i have ripped the DVD to HDD and dont have a menu. mainly live music DVD's even my £30 bush DVD player can do it.

TV only works on 2 channel to my pre, cannot change it to prologic 2

TV recordings how to change the quality currently set to medium using bout 2 gig per hour i think

Whilst watching TV it sometimes hangs for about 2 mins saying there is no TV signal i have gone through the Microsoft "speed up" doc deleting temp files etc

Jon