My copy is working perfectly, and I did move from normal to 2x speed, as I've got a nursing mama I want to get working again ASAP.
I bought mine at Big Fish, too, at a few mins. after 8 a.m. Pacific time. I did not download the demo first.
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arcadiarose Win Vista/AMD 64 AthlonX2/2.4 GHz/2 GB RAM/Direct X 9.0/256MB/NVIDIA/flatscreen + widescreen monitor/1280x1024 32-bit display