I have no rational explanation for this but I shall report my findings accurately and am not making any recommendations for anyone here to follow suit, but.....Over the past months, I have noticed a substantial number of posts complaining about  "Video tearing" during timeline playback in various computer monitors. My system showed the same symptoms which was exascerbated during reverse shuttle. Well, over the weekend, since I update my nVidia 8800 GT driver to the latest 195.62, the tearing has vanished and I'm experiencing a quality of timeline playback that looks absolutely FANTASTIC! Thanks nVidia for whatever you did to this driver version!! My AMC experience just keeps getting better & better!

Since I saw the topic came up once again in the other thread... Has anybody tried the solution above to install the latest drivers? I know it's not officially supported and Danlasvegasnv is talking about Geforce not Quadro drivers... I'm in the middle of the big project and can't afford testing this at the moment.

I'm using 195.62 with my Quadro FX4500 on Win 7 Ultimate with the same results - no tearing!

SAlud!

Tried it on 3.5.9 on Vista 64 with an FX3800 and saw no change.  Tearing is still there....

Riley, Sorry 195.62 ain't doin' the trick for you but I also ask, how often do you Defrag your drive where MC is installed? I know from experience that a very well defragmented MC drive is mandatory for optimal video playback performance regardless of the video card driver!

danlasvegasnv:

I know from experience that a very well defragmented MC drive is mandatory for optimal video playback performance regardless of the video card driver!

very true but not in this case.  This is a nvidia/Microsoft/Avid issue and their ability to interact (especially in the way Vista handles Video Overlay differently to XP) - the tearing is well documented here:

http://community.avid.com/forums/t/74412.aspx

and is seen across a variety of raids/drives/vid cards/cpus/drivers.  I myself run a 4 drive RAID and still see this on DV material so performance is not the issue.  I haven't tried the 195.62 driver as it is uncertified - perhaps an experiment to run over Xmas when things quieten down and the system isn't as busy.  Having tried 3 different nvidia drivers over various updates with no change, I suspect that this may work for some, but for many there will be no change.

Good to know it worked for you though - perhaps a clue for those looking into what is causing this.