Finder cover flow not playing .mp4 files

Recently I found the option to play video files while in the cover flow view in a finder window (click on the right pointing arrow that appears when hovering over the thumbnail).
This week when I try playing a video (.mp4 files), I can see that the video is playing but it is not displayed. I know it is playing because I can hear the sound track, can see the reflection of the video below where the display of the video should be and the progress circle works.
MacBook / 10.6.2
Anybody else seeing this? Anyone have a solution?

This was fixed in the 10.6.4 update.

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Message was edited by: bambam922
Message was edited by: bambam922

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finder is not showing correct file in cover flow mode. The files shown in the top panel are one file off.

This problem occurs after I move a file or files to trash. If I remove one file, then the sequence is one file off, if I move two files to trash then the sequence istwo file off. For example, if I delete file 1 and highlight (click on) file 3, then the cover flow panel shows file 2, when it should show file 3.

Finder Cover Flow is broken and doesn't show the correct file I click on

When I go into my Downloads and press the spacebar to preview a photo, it will preview the photo before it for some weird reason.
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I highlight and press space for "Photo 2", but instead it will show "Photo 1" in the Cover Flow and will Preview that instead.

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---- ExifTool ----
ExifTool Version Number         : 8.68
---- System ----
File Name                       : GoogleEarth3.jpg
Directory                       : /Users/******/Downloads
File Size                       : 32 kB
File Modification Date/Time     : 2012:04:02 19:39:27-07:00
File Permissions                : rw-r--r--
---- File ----
File Type                       : JPEG
MIME Type                       : image/jpeg
Image Width                     : 497
Image Height                    : 382
Encoding Process                : Progressive DCT, Huffman coding
Bits Per Sample                 : 8
Color Components                : 3
Y Cb Cr Sub Sampling            : YCbCr4:2:2 (2 1)
---- JFIF ----
JFIF Version                    : 1.01
Resolution Unit                 : inches
X Resolution                    : 72
Y Resolution                    : 72
---- XMP-x ----
XMP Toolkit                     : XMP Core 4.4.0
---- Composite ----
Image Size                      : 497x382

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Check this blog and this post.
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http://portablevideo.blogspot.com/2008/03/will-this-video-play-on-my-nxx.html
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Finder cover flow not playing .mp4 files

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