Pioneer VSX-920-K DPL instead of DPLII

At first this problem only existed when I ran my XBOX360 through the receiver, but now it is with my PS3/Blu-ray player as well.

Whenever I run content, my only two choices are Dolby Pro Logic (4.1) or Dolby Pro Logic IIz (my height speakers). I have tried to put off the problem by having height speakers plugged in so that it runs PLII in some form. Otherwise my center channel is never used.

Basically, I can't find out how to switch it back to features like DPLII-Movie, DPLII-Music, DPLII-Game and so on and so forth... The Standard button no longer shows those features, just 4.1 and 7.1 heights.

Any help would be appreciated.

bump

(could really use some help with this. I couldn't find a Pioneer 920 or 921 Owners Thread but if there is one, I could use help finding it)