[PROBLEM] After Effects MP4 Importation red screen problem!!

Hi,
I used the lastest version of AE (13.8) , when I import an MP4 video, It displays me a red screen in the MP4 imported for each 5 or 7 frames (approximatly), and here is some demontration images :
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I have ATI radeon HD M6300 series , I don't now if it's a graphic problem or a version problem , because I had a previous AE version and didn't encouter this problem.
(PS : this problem is encountered just with MP4 , but with WMV it works normally)
thanks in advance

Creativity is the second world of our life ;)

Hi ,
Thank you a lot ! I fixed it now :)

Creativity is the second world of our life ;)