Flashing Text after Export

When I export the video, the text in the snippet becomes flashy, see attached link. Any advice?

Settings are set to Encoded Size 640x360 pixels
Pixel Aspect Ration 1:1

Frame rate 29.97, Codec H264, Format Mov, Profile Level Baseline Profile 4.1

Don’t mind the graphic, this isn’t complete, just want to see if can get the text to appear right after exporting…

Video: http://tinypic.com/r/35ksc8z/9