I've installed panda3d 1.8 on windows 7, but the Solar System and Asteroids samples were not working (I didn't try the others): it only opened a black window.
So I uninstalled 1.8 and installed 1.7.2, with the same results.
I've used only pre-packaged versions.
No error message was given (I ran the samples from the command prompt).
I have an Asus Eee PC 1215P (Intel Atom D525, GMA3150), with video driver properly working.
Any suggestion is welcome :-)