it appears that there are still some components of the radiance lighting mod
still installed in your game.
It looks as though there are some people having the same issue, posting in the scriptorium thread. Perhaps you should post your problem there as well-
http://modthesims2.com/showthread.php?t=192613&c=0&ht=0&page=14&pp=25#startcommentsThere's a suggestion by Numenor -
If you already used the "Restore Maxis lights & Uninstall Scriptorium", do it again.
Also, you can find a back up of the original Maxis lighting files in the
Gunmod's_Radiance_Light_System_2_3_beta thread at More Awesome Than You
http://www.moreawesomethanyou.com/smf/index.php?PHPSESSID=86b40f6e68de3acfaeed7658161298d1&topic=9811.0