When i use first person camera or third person camera never noticed that issue.
Maybe it is not seismovission problem , maybe is etpro problem .
Because of my unregistred seismovision version i dont have the etpro 3.2.6 ava , so i noticed this issue with etpro 3.2.5 and et 2.60 versions and demos recorded before the etpro or et new releases ( 3.2.6 / 2.60b ) , and so on i couldnt check if with seismovision tunned to play with etpro and et new verisions fix the problem .
I noticed too , my english < 3 , so i made an avi showing what i mean ( and maybe i was not been capable of explaining it at all ) of one demo i saw . It happens always ( at least all demos i saw , a few

I uploaded the avi to rapidshare ( if u prefer other direction to upload it , just say me pls ) , the link is :
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http://rapidshare.com/files/761996/peop ... r.avi.html
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the link to the demo which is shown on the avi is:
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http://www.challenge-tv.com/index.php?m ... 1128&dl=47
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If u need some other data , just ask me pls .