Avisynth prob- directshowsource error

Hi. I have huge avisynth prob on my GIG PC. When i load avs file i always see- Directshowsource error. Cant locate audio or video. Graph error. I try build graph by graph editor and see 3 nodes - (AVS Video)-(Color space converter)-Render
but i must have (AVS video)-(AVI Decompressor)-(Renderer)
I can connect AVI decompressor on gig PC. I try install different splitters but no effect. On my home PC all works perfect.

Full text of error- “DirectShowSource: Could not open as video or audio
Video Returned: “DirectShowSource: the filter graph manager won’t talk to me””?