OK, I have editted a movie in Adobe Premiere CS3 and I am trying to export using the H.264 codec. I have tried 3 times with various different settings, yet whenever I play back the finished video in quicktime, the image is jumpy and has kind of a lagging or ghosting look to it. I can't seem to get this right. All i want is it to look good and play smooth because its final destination is vimeo. I have followed their compression settings perfectly but everytime i get the same thing. I'm pretty sure its not my computer because in Adobe premiere it plays fine, and the raw footage (.m2t) plays fine, and all HD videos on Vimeo plays fine. Could somebody pleeeease help.

Settings for export
Codec: H.264
Audio: ACC
Frame rate: 29.97
1280 x 720
Bitrate: 5.2 Mbps

Is it better to export to MPEG 2 first then conver to MPEG4 afterwards?