I was trying the HD DVD Simulator on a laptop it runs but when any sample is loaded it doesn't display anything. Could it be that the simulator doesn't work on a (low) resolution of 1024x768
I'll bet it is your video card. I tried running HDiSim on two not so new laptops with no luck (right after the Sim was released). The window would open up but nothing would play. I bought a new laptop with a current generation video card and it runs great.
Check how much video RAM you have (via DXDiag). My laptop has a paltry 16M of VRAM, which means iHDSim only works when the window is really small (resize the window before loading a playlist). The error handling/reporting when vram expires is, um, mostly missing. You get no video display, which sounds like your scenario.
HD DVD Simulator on laptop
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