Why can I have great full screen video with mPlayer (cache 8192 and framedrop) and my Mythtv experience is like molasses? Rez and ivtv settings are identical..... I'm using an epia m10000 with kernel 2.4.21-ac4, xfree86 4.3.99.10 (vesa xserver as the via one doesn't work), pvr250r1 and alsa sound. What should I do? thanks anders