actually the problem only happens in WIn7 x64. And there's another workaround to solve it. I chose another method, by using K-Lite Mega Codec x86 n x64; with some tweaks..
thanks, but one problem.. window explor keep crashing when opening a folder contain mkv thumbnail.. need help.
OP: No problem here. Make sure you have all Windows Updates installed. EDIT: I should update the download links...