Need help fixing video "stutter"

[RetroGamer]

ok all, I'm running Windows 7 x64 Pro and have a new issue that I have no idea how to fix. (When running same hardware on Vista - both 32 and 64 bit, everything worked...)

My video - be it from a DVD or Blu or from a youtube video / mpg from my hard drive - stutters. Meaning, the sound plays back fine, but the video, every second or 2, 'stutters' then snaps back, only to stutter again. Happens when playing video from itunes (a digital copy).

I have updated to the x64 NVidia driver (latest) as I'm running a GTX 285

I have installed DirectX 9.0c

I have installed the Shark007 codec pack

The problem occurs with Any player (VLC, TMT3, iTunes, Media Player and internet explorer - all tested with same result).

Output is via HDMI - screen resolution is 1920x1200. Refresh rates match.

Any help greatly appreciated...

[RetroGamer]

Other info:

SP1 and all other Win7 updates installed

Q6600 (Stock) processor on Asus P5W DH Deluxe motherboard
4Gb RAM
E-Vga GTX 285 video card w/ 1GB
Generic SATA DVD drive
LG BluRay drive

[BohemianGraham]

Try upgrading DirectX, your card is capable of 10, not sure if it's 11 compatible, as 11 is the latest version. Also, CCCP (Combined Community Codec Pack) is better than Shark, at least in my opinion

[RetroGamer]

Just upgraded / installed 9, and have the Dx 11 that came with Windows 7. Also downloaded the latest proper drivers and installed before finally getting to my wits end.

Note, that when I go to the NVidia control panel, and click 'adjust image settings with preview' - the 3d image that is turning is also stuttering...

[MrFattBill]

Make sure you arent getting any type of disk read errors in the logs.

Bill

[BohemianGraham]

Just did a little Google-Fu for you, and it appears it's a common issue:

http://www.evga.com/forums/tm.aspx?m=70466&mpage=1
http://forums.techarena.in/video-games/1154601.htm
http://www.evga.com/forums/tm.aspx?m=645637&mpage=1

Not sure if it will help, but for some people, it works.

[RetroGamer]

CPU monitor shows activity when there should be none, but I'm not sure what the cause is. I've checked process explorer, and it's all in the 'system'

I do have about 16TB of drive data attached, but that doesn't seem to be the cause.

Basically, if I watch close enough, I can even see a glitch with the animated smiley faces here on the forum...

I'm getting CPU activity on 'Interrupts' constantly (though usually .25-.5%)