Quicktime export distorted when uploading to Vimeo & YouTube

Hi all,

I am having issues uploading my FCP quicktime exported short videos to both Vimeo and YouTube. I initially thought it was an issue w/ Vimeo's encoding, since it's the first time I've had the problem and numerous other people were complaining of issues. But I just tried it with YouTube with the same results.
The exported video, when opened with Quicktime on my computer, plays normally. However as soon it's uploaded online, it gets seriously distorted.

Here is an example of what happens:

http://www.youtube.com/watch?v=SgEPHtXHn5M&feature=youtu.be


I've uploaded countless times to Vimeo without issue.
Could there be something wrong w/ the export process? or perhaps it's the choppy internet connection? Although it's always been not so good here so I'm not sure why it would affect it now.
I'm so confused! The footage in this video is all NTSC, 30p shot w/ the 5D MKII and two shots from the XF100 (also NTSC).

Life is worth living.

Here are the settings I use preparing a video for Vimeo and have had great results;

Format MP4
Frame size - same as source
Frame Rate - same as source
Field Order - Progressive
Variable Bite Rate (VBR) 1 Pass
Target Bit Rate - 4Mbps
Max Bit Rate - 5Mbps
Audio - ACC
48khz
Bit Rate - 256

Bars & Tone
SALUTE!

I use Adobe Media Encoder, with the setting listed before, to process for Vimeo. I don't think it is doing anything special to make it work right. Try Vimeo's Tech Support and have them evaluate one of your videos. See if they can track down the problem.

Good Luck!