THIMC,
 
If I run the attached POV file I get the following error.
 
    Fatal error in renderer: Out of memory.
    Render failed
 
If I comment out the cutaway_textures, or change the plane from y to -y it works fine. I suspect a bug in the cutaway_textures code.
 
I have just tried it again after changing line 77 to read "  #local rx=rx+10;" and it now works... In fact any step value over 5.715 works, but anything less fails, but only with cutaway_textures!
 
It fails consistantly in both Version 3.7.0.beta.30.msvc8-sse2.win32 and in Version 3.7.0.beta.30.msvc8.win32, but works fine in Version 3.6.1.icl8.win32
 
If you want any other info, just ask.
 
Rarius