Deferred Lighting not working properly

Hello
I recently purchased Unity Pro and i was switching some things and the deferred lighting seems to not be working properly.
for example if i don’t use lightmaps, then the whole scene disapears…

alt text
1: Deferred lighting with lightmaps
2: Forward with lightmaps
3: Deferred lighting without lightmaps

One other problem is that the camera is rendering double the polygons in deferred lighting than with forward.

I tried to create a new scene in the project and the same thing happens, but when i create a new project, everything is ok.

I’m using some shaders created with Strumpy Shader Editor but not on all objects.

Here’s another image:
I created a new scene and created a plane and a spot light and this happens
alt text

Can someone say why this is happening?

Thanks

I don’t know if you will still read this, but the strumpy shader editor is getting out-dated. Some shaders i create in it bug out ones ingame.