Intro and beginning videa run fine but game graphics never load

[Urkle]

it looks like your drivers are not installed correctly.. As the HPL.log should list "supported" shader profiles and it is not. (hence the profile UNKNOWN errors).. For example my Nvidia 7300 card lists this

Checking Supported Profiles
Profile CG_PROFILE_VP40 is supported
Profile CG_PROFILE_FP40 is supported
Profile CG_PROFILE_ARBVP1 is supported
Profile CG_PROFILE_ARBFP1 is supported
Profile CG_PROFILE_GLSLV is supported
Profile CG_PROFILE_GLSLF is supported
Profile CG_PROFILE_GLSLC is supported
Trying to load vertex program!

Can you please provide the output of glxinfo? ass it looks most likely like the wrong libGL is being used by penumbra (ie.. MesaGL instead of the nvidia GL)