hmm... this yellow thing.. shows a filer form microsoft..which is used in video editing.. see this link
http://msdn.microsoft.com/en-us/libr...00(VS.85).aspx
So remove it first..or check from where you got it..
Now...may be this causes your 5 mints problem... but if it doesn't goes..then try to get rid off all the video/audio players first... also remove all you codes and xtra things for video/audio...
Then install K-Lite mega codec pack, VLC(VideoLan client - audio-Video player for all)..
and ya... use VLC/ media player classic (From K-Lite) to see videos...
See if this helps you...

May be some kind a filter/codec is attached which got loaded everytime when you starts videos..
so check in memory...in task manager... for that.. you can use.. prcView..which will show you which exes running with path and info...so you will know if there is any virus kind a thing or something..
Parth.