Display and subtitle problems with 10/8 bit in Mac OS

I'm using Leopard right now, and I was having an issue with playing the 10 bit episodes in MPlayer OSX Extended. It keeps having some discoloration throughout the episodes, like this picture http://s1235.photobucket.com/albums/...t=shot0004.png

I'm fine with using the 8 bit version, but for some reason the subtitles won't show up when I use 8 bit, but they do when I used the 10 bit version. I was able to get the subtitles to show up in Quicktime with Perian, but the video would freeze for 15 seconds at a time before skipping. My 8-bit version in MPlayer looks fine http://s1235.photobucket.com/albums/...t=shot0005.png

Does anyone know how to fix either of these problems? I also tried using VLC Player, but that didn't even bring up the picture for the show. Thanks for the help!