I'd like to know why I can't see the ground texture in preview? I have it set for full texture shaded.]I applied a material to the ground in the materials room, and made sure I had the ground set to visible, but I still couldn't see it :( Thanks

Poser 9 SR3  and 8 sr3
=================
Processor Type:  AMD Phenom II 830 Quad-Core
2.80GHz, 4000MHz System Bus, 2MB L2 Cache + 6MB Shared L3 Cache
Hard Drive Size:  1TB
Processor - Clock Speed:  2.8 GHz
Operating System:  Windows 7 Home Premium 64-bit 
Graphics Type:  ATI Radeon HD 4200
•ATI Radeon HD 4200 integrated graphics 
System Ram:  8GB