frameserving problem
 

I have been using Vdub + VOBSub for months, until last night, problem arised. When Tmpeg reached half of the movie or near the end of movie, the picture freezed but the subtitle (VOBSub) kept moving on until the end. I checked Vdub, it said "avisynth error: reading error at 0x348797" something like that. I recently install VOBsub 2.20, I had no problem at all previously when using with VOBsub 1.xx, any suggestions?