I'm not sure.
This is what MaG's walkthrough says:See Brian through the window where Gina's scarf is hanging (also a cockroach).
Move cursor to bottom of the screen, click and be at other side of the laundry room.
Climb up to small grilled window. Take scarf-rag.
Are you looking at the correct window?
"Bleat, Watson -- unmitigated bleat!" ~ Sherlock Holmes