VirtualDubMod problem

have minor problem with virtualdubmod (VDM).

before i installed k-lite codec pack, had no problem muxing and attaching subtitles on videos. after installing k-lite i experienced some problem. when i mux subtitles on a video, the output video window (right window) in virtualdubmod doesn't show the subtitles; thus confusing me & making it hard for me to know if the subtitles are synchronized properly or not. the good thing is.. the process went fine, the subtitles were attached and synchronized correctly.

what i like to know.. is how to make the subtitles appear on the output window while muxing goes on? before the insatallation of k-lite the subtitle is visible during processing (in the virtualdubmod). hope somebody could help me... what do i need to do? is there anything i need to install?

by the way, subtitles also doesn't appear during playback in input window of virtualdubmod (the left window or default playback window).