Video won't play on timeline

I use PP CS3. Mac Pro Intel. After 2 plus years of working great, all of the sudden, my video will not play in the timeline or preview windows. I can see the video frame I am on, by no play.
I went to preferences, media, and hit the clean button. I checked the previews and cleared those. Also, .movs play fine in QT player, and the clips play in FCP. (I have the Express version, don't care for it) so I think that eliminated hard drive or other hardware issues.
I reinstalled and get the same results.
Help please. Scott

Try clearing your preferences: http://blogs.adobe.com/genesisproject/2009/11/having_weird_behavior_with_an.html

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Video won't play in timeline or source monitor

I recently purchased a Canon HG10 camcorder and have been attempting to edit the AVCHD .mts files using Premiere Pro CS4 (4.2.1). However, I have been unable to play the video in either the timeline or source monitor. Both the video and audio will play for a fraction of a second and then stop. I thought it might be an issue with the .mts file so I converted it to several other formats (Quicktime, H.264, MPEG4, etc.) and I still can't get any video to play. I imported and tried playing other video, but to no avail. I can edit, scrub, export, apply effects, and do pretty much anything else - but I can not get it to play in the timeline. I do have Final Cut Express and if I convert the .mts file to Quicktime I can edit it, but I would like to be able to edit the native Canon AVCHD.
Current system:
iMac 10.6.4
2.16 GHz Intel Core 2 Duo
3 GB RAM
ATI Radeon X1600
74 GB hard drive space
Any help or suggestions would be greatly appreciated.
Jason

Jason,
The first thing that I would check would be your Playback Preferences. Please list your settings, and folk here can review them and possibly spot something simple.
Next, I would do one of two things, regarding your Catalyst drivers for you ATI/AMD card. If you do not have the latest driver, download and install it. If you DO have the latest Catalyst driver, keep it around in a safe folder, but download and install an earlier version. Cannot recall the exact numbers now, but a few users had to go back about three versions. Also, since those driver versions were listed in this forum, I'd bet that at least two more have been released. Going back a few months, it seems that there were 2 - 3 versions, that did not work well with some Adobe programs.
Though I have all nVidia cards, I keep drivers going back about 6 mos., as I never know when I might encounter an issue and need to roll-back.
Also, as the gaming market drives the video card business, and their drivers, it is possible that some gamer-only module has been added. That happened with nVidia drivers about a year ago. For a couple of versions, one had to manually disable a 3D and another gamer-only module. Later versions installed with these off, unless the user turned them on.
Last thought - check your OpenGL settings, and depending on your OS, check Hardware Acceleration. In your Catalyst console, check what your 3D settings are. You want to set any to "Let the application choose," or similar syntax.
Good luck, and hope that something there helps you.
Hunt

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Today at 12:28https://www.facebook.com/indesign/timeline
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I've tried to find a solution for my problem online but haven't come across anyone with the same issue. I often work with powerpoint presentations with many videos in it. The videos play just fine on my laptop and also when hooked up to an external monitor, which I use when at work, both in slideshow mode and when previewing my animations. However, when I hook up my mac onto a projector the videos won't play - not on my laptop screen nor on the projected screen. I've tried rearranging the displays by draggin the menu bar to either display and also switched from mirror screens to presenter's view within powerpoint but nothing helped solve the issue. The only solution I found is to play the presentation on my windows partition - which is not really what I'm planning to do for long term...
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Here what I figured out so far:
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2. You can resolve it (in my case) by quitting PPT and launching it WHEN connected to beamer
3. Yet, make sure Mac does not go into sleep mode or you get a lock-screen in the waiting time. if you do so, you get back to square 1. quit PPT again 2. restart it.
4. Also.... in one case I had to hit the volume control once to get the sound back even though movie was playing
So in short: Connect to beamer first, then launch PPT
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Reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.
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Are you using the YouTube app or Safari?
Could be the videos are Flash based, which Safari can't display.
Adobe has not made a version of Flash for the iPad.
Kappy explains why. https://discussions.apple.com/message/19446567#19446567
5 Flash Player Alternatives http://www.techshout.com/features/2011/01/flash-player-for-ipad-apps/
Top 4 browsers supports flash player on iPad and iPhone
http://mashtips.com/flash-player-ios/
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Help me please, games crash on launch, youtube videos won't play.

Whenever i start up sound blaster cinema it just crashes, it will be fine for about 10 seconds, then it just crashes, it will usually freeze up everything when it crashes only thing i can do is move my cursor around, it will unfreeze after 10 seconds or so as well.
I have tried to update sound blaster cinema but there are not updates available.
It would usually go back to normal after a shutdown or a restart but this time it wasn't having any of it.
Can anyone suggest anything that i couldn't think of?
The crashing first started a month+ ago, but today when I was playing L4D2 a boomer explosion crashed L4D2 and sound blaster cinema simultaneously and now sound blaster cinema won't stop crashing after launch.
(Edit)
I can't launch any games, i try to play the game osu! and it launches normally except the screen turns black and then it crashes. i try to launch steam and login but the login menu wont pop
I can't even play a youtube video, the background of the video will show but the video won't play, it's not buffering but the video is loading.
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I went and downloaded thee intel(R) driver update utility 2.0 went to find drivers and then to auto detect and updated my drivers.
This is the driver that helped me. vvvv
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Video won't play on timeline

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