How can I stop my model render stop to reflecting colours from the large wall graphics?

[XLi]

Hi,

We have put a few orange-coloured wall graphics in the model, and the render appears orange on every single white wall & pillar. Is there a way/setting to stop that colour reflection on the white material model? When we hide the orange graphic, the render looks fine. Thanks

[BartHays]

Are you using indirect lighting? That sounds like it might be bouncing light off of the graphics and into your scene.

Do the graphics have a "Glow" shader that might be emitting light?

 

can you post the file so we can help diagnose it?