Windows Media Player not responding

WM Player is not responding when i try to play some AVI Files.
what is surprising is that these particular movie files are playable before
with the same WM Player im using. so i dont know what has been modified in my
system that it is not playing now.

moreover, i tried the other videos i have w/c are AVI also, but they are
playing.
i dont know where the problem is. i opt to try Real Player but it return the
same error.. the program is not responding everytime i play the file.

here are the properties of the file that makes my wm player not responding:
Video
frame width: 624
frame Height: 352
data rate: 8kbps
total bitrate: 136kbps
frame rate: 29frames/second
Audio
bit rate: 128kbps
File
Type: AVI File

im using WM player version 11.0.6002.18111
OS: Windows Vista Home Premium

my friends suggests me to use vlc player and it did work fine, but i wanted
to stick to my wmplayer because im use to it and all my files are organise
the way i wanted it to be in my wmplayer.

im a bit surprise how my wmplayer got into trouble when i didnt remember any
system changes b4 the problem happened other than installing a LG PC Suite
III that comes with my lg arena, and the usual windows updates.

any suggestions is much appreciated..