So, you guess, NL is the problem?

I have written an email in EA Games. I should send my game to the Customer Support. The Base Game and every Expansion Pack will be exchanged.

Oh, that was very helpfull for me. Now I know, that it´s not just my problem! Thank you very much for your help and the pictures!!!

Okay, I see. But i am having this problem wiith every single lamp! Only the floor lamps are working. I don´t know, perhaps it is something wiith the scripts or perhaps the patches are making some problems?

Perhaps I should reinstall the game, wihout patching is 

Well, that means, all my lamp are buggy? I can´t believe that!

Something is borking my lighting, but how to find out, what it is? I am using CEP and I installed it yesterday (CEP 6). I also installed the sriptorium.

So, what can I do?

Well, I did. All the grindlines are there and there are no spaces...

Well, but I also have this problem with original houses! The house, you can see on the picture, is original by Maxis! Just on Community Lots the lighting is okay.

I also tried the cheat wihtout a result 

I have a problem with the lighting. I thought, maybe my computer is the reason. But I have a new computer and the problem is still there.

The lighting in the upper floor does not work. I build a house, buy the lighting, switch on all lamps. Everything goes. However, if I have played then some time in the basement and go then again upwards, it is dark there! To switch on the light then again, I have to go to the Buy Mode and click the Objects with the hand in the buy mode. Then the objects became brighter. Sometimes it also helps to zoom closer to the objects.
Well, the lights are on now, i go back to the basement. When i than go upward, the lights are out! It is always the same.
I have no idea what´s the reason for that! I have no Hacks or Downloads in my game.

My settings in the graphic options are "high". But if i change this to low or middle, it´s the same.

My graphic driver is updatet.
Here are some pictures. First, before clicking in the buy mode, the second after clicking in the buy mode or zoomed in:





I have installed all Ep´s. My system:

Intel Core 2 Duo E6600 / 2.4 GHz
2 GB, DDR II SDRAM
2 Single-GPU-Karten (SLI)
NVIDIA GeForce 7900 GS,256 MB
Digital-Video-Standard: Digital Visual Interface (DVI)