quicktime acting strange

ok..im having a strange problem with quicktime...all movies (avi files) i am playing seem to have a pixel wide green border around them in fullscreen mode...they play alright...but whats with the green frame? this problem is definitely new...never noticed it before...one of the new updates seem to have started making it do this...but im not sure which...can you guys check if your quicktime is doing the same?
i'm using quicktime 7.5 on os x.5.3 & i haven't noticed it happening with other file types

bumping this up....can you guys check if this it happening on yours too?

bump no. 2....seriously...can people please check if this is happening or suggest what i can do to prevent it from happening on my system?