Movies get stuck and/or repeat frames

I am using MPlayer-plugin 3.40r1 and I have a problem playing some 
movies, like Apple's trailers [1]. They either repeat some frames and 
freeze after playing a few seconds (like one or two). Downloading the 
movie and playing with mplayer (command-line) works fine, without any of 
these problems. However, mplayer displays a lot of "Error while decoding 
frame!" messages, as you will be able to see below.

Please let me know if you need any further information.

[1] http://www.apple.com/trailers/magnolia/districtb13/hd/

Thanks in advance,
Rodrigo

--

MPlayer log:
MPlayer dev-SVN-rUNKNOWN-3.4.4 (C) 2000-2007 MPlayer Team
CPU: VIA Esther processor 1000MHz (Family: 6, Model: 10, Stepping: 9)
MMX2 supported but disabled
CPUflags:  MMX: 1 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.

Playing district_b13_h720p.mov.
ISO: File Type Major Brand: Original QuickTime
Quicktime/MOV file format detected.
[mov] Video stream found, -vid 0
[mov] Audio stream found, -aid 1
VIDEO:  [avc1]  1280x544  24bpp  23.976 fps    0.0 kbps ( 0.0 kbyte/s)
Clip info:
 comments: Encoded and delivered by apple.com/trailers/
 copyright: � 2005 Magnolia Pictures. All Rights Reserved
 name: Disctrict B13
xscreensaver_disable: xscreensaver wid=6291490.
==========================================================================
Forced video codec: ffmpeg12mc
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
AUDIO: 48000 Hz, 2 ch, s16le, 128.0 kbit/8.33% (ratio: 16000->192000)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio) 
decoder)
==========================================================================
AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
Starting playback...
Compiler did not align stack variables. Libavcodec has been miscompiled
and may be very slow or crash. This is not a bug in libavcodec,
but in the compiler. Do not report crashes to FFmpeg developers.
VDec: vo config request - 1280 x 544 (preferred colorspace: Planar YV12)
VDec: using Planar YV12 as output csp (no 0)
Movie-Aspect is undefined - no prescaling applied.
VO: [xv] 1280x544 => 1280x544 Planar YV12
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
New_Face failed. Maybe the font path is wrong.
Please supply the text font file (~/.mplayer/subfont.ttf).
subtitle font: load_sub_face failed.
[h264 @ 0x86b4f10]concealing 2176 DC, 2176 AC, 2176 MV errors% 0 0
[h264 @ 0x86b4f10]no frame!43 ct:  0.006   4/  4 ??% ??% ??,?% 3 0
Error while decoding frame!
[h264 @ 0x86b4f10]no frame!50 ct:  0.009   6/  6 ??% ??% ??,?% 5 0
Error while decoding frame!
[h264 @ 0x86b4f10]no frame!56 ct:  0.011   8/  8 ??% ??% ??,?% 7 0
Error while decoding frame!
[h264 @ 0x86b4f10]no frame!64 ct:  0.013  10/ 10 ??% ??% ??,?% 9 0
Error while decoding frame!
[h264 @ 0x86b4f10]concealing 2176 DC, 2176 AC, 2176 MV errors% 10 0
[h264 @ 0x86b4f10]no frame!70 ct:  0.016  14/ 14 258%  8% 14.1% 12 0
Error while decoding frame!
[h264 @ 0x86b4f10]no frame!05 ct:  0.017  16/ 16 226%  7% 12.4% 14 0
Error while decoding frame!
[h264 @ 0x86b4f10]no frame!47 ct:  0.018  18/ 18 220%  6% 21.8% 16 0

Rodrigo

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