Ceiling reflecting grass

[Anonymous]

I'm using the preset Interior Daylight Render settings, all of a sudden my indoor ceiling turns green, it seems that it's reflecting the grass color outside. I didn't have this yesterday, and I don't recall changing any surface settings, all default from the catalog... what may be causing this? Can someone please shed some light? Thanks!

[Anonymous]

Ok, I managed to get rid of the grass reflection by adding some window lights... but now my french door shows an abnormal reflection, as you can see from the attachment, the outside grass is getting reflected onto the glass surface, something that would never happen.

I'm starting to get a little frustrated by these incorrect reflections appearing everywhere... can someone help me out?