About 2 months ago, without changing any codecs except the odd Xvid upgrade here and there, I started to notice vertical bands on many files types. Over the past 2 months, the bands have increased in number and size, affect nearly all file types (mpeg2,divx,xvid,asf,wmv). I've tried multiple codec installations/deinstallations (always making certain to unregister and delete the .ax files). The bands simply change color and increase in quanity when switching between Divx 5.1, Xvid 1.0, ffdshow, 3ivx, etc. Oddly enough, screenshots of the artifacts come out perfect.. so I had to take pictures of my screen with my phone's digicam. You can see how distracting the artifacts/bands are to all video watching.. http://www.geocities.com/bentleybrian/image1.jpg http://www.geocities.com/bentleybrian/image2.jpg I believe I have isolated it to a NON-codec issue. After uninstalling my video driver (nVidia 28.42's on a Geforce4 Go 420, Toshiba Tecra laptop), I noticed that while in plain XP VGA mode, the artifacts completely disappear and movies play fine (though choppy since no driver is installed). I have since tried over 6 different driver revisions and yet still, the problem remains. I've also upgraded to DirectX 9.0b with no luck. I have literally been pulling out my hair trying to figure out what's causing these strange artifacts (intensive googling and codec forum searching has come up dry). Reformatting is not an option unfortunately. Any help, ideas, or suggestions would be TREMENDOUSLY APPRECIATED!