Glad you like it in 3D too :)
Sometimes i also see 2 grey polygons, but you can eliminate it by adjusting depth or convergence:
CTRL+ F3-F4-F5-F6, try with these keys!
Freerider also works with 3DTV Play, so you can play on ANY hdmi 1.4 compatible 3D display!
Resolution is 720p in 60Hz mode, but this still looks fantastic on my room wall with a cheap Acer 3D projector.
Another device is a passive LG monitor with the Zalman inf driver, so here i can use 1080/60 mode.
I thank you the developer agian, and hope the program will be even better in the future :)